| 1 | 000 – Computer science, information & general works |
| 2 | 000 Computer science, knowledge & systems |
| 3 | 000 Computer science, knowledge & general works |
| 4 | 001 Knowledge |
| 5 | 002 The book |
| 6 | 003 Systems |
| 7 | 004 Data processing & computer science |
| 8 | 005 Computer programming, programs & data |
| 9 | 006 Special computer methods |
| 10 | 007 [Unassigned] |
| 11 | 008 [Unassigned] |
| 12 | 009 [Unassigned] |
| 13 | 010 Bibliographies |
| 14 | 010 Bibliography |
| 15 | 011 Bibliographies |
| 16 | 012 Bibliographies of individuals |
| 17 | 013 [Unassigned] |
| 18 | 014 Of anonymous & pseudonymous works |
| 19 | 015 Bibliographies of works from specific places |
| 20 | 016 Bibliographies of works on specific subjects |
| 21 | 017 General subject catalogs |
| 22 | 018 Catalogs arranged by author, date, etc. |
| 23 | 019 Dictionary catalogs |
| 24 | 020 Library & information sciences |
| 25 | 020 Library & information sciences |
| 26 | 021 Library relationships |
| 27 | 022 Administration of physical plant |
| 28 | 023 Personnel management |
| 29 | 024 No longer used—formerly Regulations for readers |
| 30 | 025 Library operations |
| 31 | 026 Libraries for specific subjects |
| 32 | 027 General libraries |
| 33 | 028 Reading & use of other information media |
| 34 | 029 No longer used—formerly Literary methods |
| 35 | 030 Encyclopedias & books of facts |
| 36 | 030 General encyclopedic works |
| 37 | 031 Encyclopedias in American English |
| 38 | 032 Encyclopedias in English |
| 39 | 033 In other Germanic languages |
| 40 | 034 Encyclopedias in French, Occitan & Catalan |
| 41 | 035 In Italian, Romanian & related languages |
| 42 | 036 Encyclopedias in Spanish & Portuguese |
| 43 | 037 Encyclopedias in Slavic languages |
| 44 | 038 Encyclopedias in Scandinavian languages |
| 45 | 039 Encyclopedias in other languages |
| 46 | 040 No longer used—formerly Collected essays by language |
| 47 | 040 [Unassigned] |
| 48 | 041 [Unassigned] |
| 49 | 042 [Unassigned] |
| 50 | 043 [Unassigned] |
| 51 | 044 [Unassigned] |
| 52 | 045 [Unassigned] |
| 53 | 046 [Unassigned] |
| 54 | 047 [Unassigned] |
| 55 | 048 [Unassigned] |
| 56 | 049 [Unassigned] |
| 57 | 050 Magazines, journals & serials |
| 58 | 050 General serial publications |
| 59 | 051 Serials in American English |
| 60 | 052 Serials in English |
| 61 | 053 Serials in other Germanic languages |
| 62 | 054 Serials in French, Occitan & Catalan |
| 63 | 055 In Italian, Romanian & related languages |
| 64 | 056 Serials in Spanish & Portuguese |
| 65 | 057 Serials in Slavic languages |
| 66 | 058 Serials in Scandinavian languages |
| 67 | 059 Serials in other languages |
| 68 | 060 Associations, organizations & museums |
| 69 | 060 General organizations & musiology |
| 70 | 061 Organizations in North America |
| 71 | 062 Organizations in British Isles; in England |
| 72 | 063 Organizations in central Europe; in Germany |
| 73 | 064 Organizations in France & Monaco |
| 74 | 065 Organizations in Italy & adjacent islands |
| 75 | 066 In Iberian Peninsula & adjacent islands |
| 76 | 067 Organizations in eastern Europe; in Russia |
| 77 | 068 Organizations in other geographic areas |
| 78 | 069 Museum science |
| 79 | 070 News media, journalism & publishing |
| 80 | 070 News media, journalism & publishing |
| 81 | 071 Newspapers in North America |
| 82 | 072 Newspapers in British Isles; in England |
| 83 | 073 Newspapers in central Europe; in Germany |
| 84 | 074 Newspapers in France & Monaco |
| 85 | 075 Newspapers in Italy & adjacent islands |
| 86 | 076 In Iberian Peninsula & adjacent islands |
| 87 | 077 Newspapers in eastern Europe; in Russia |
| 88 | 078 Newspapers in Scandinavia |
| 89 | 079 Newspapers in other geographic areas |
| 90 | 080 General collections |
| 91 | 080 General collections |
| 92 | 081 Collections in American English |
| 93 | 082 Collections in English |
| 94 | 083 Collections in other Germanic languages |
| 95 | 084 Collections in French, Occitan & Catalan |
| 96 | 085 In Italian, Romanian & related languages |
| 97 | 086 Collections in Spanish & Portuguese |
| 98 | 087 Collections in Slavic languages |
| 99 | 088 Collections in Scandinavian languages |
| 100 | 089 Collections in other languages |
| 101 | 090 Manuscripts & rare books |
| 102 | 090 Manuscripts & rare books |
| 103 | 091 Manuscripts |
| 104 | 092 Block books |
| 105 | 093 Incunabula |
| 106 | 094 Printed books |
| 107 | 095 Books notable for bindings |
| 108 | 096 Books notable for illustrations |
| 109 | 097 Books notable for ownership or origin |
| 110 | 098 Prohibited works, forgeries & hoaxes |
| 111 | 099 Books notable for format |
| 112 | 100 – Philosophy and psychology |
| 113 | 100 Philosophy |
| 114 | 100 Miscellany of philosophy & psychology |
| 115 | 101 Theory of philosophy |
| 116 | 102 Miscellany of philosophy |
| 117 | 103 Dictionaries of philosophy |
| 118 | 104 No longer used—formerly Essays |
| 119 | 105 Serial publications of philosophy |
| 120 | 106 Organizations of philosophy |
| 121 | 107 Education, research in philosophy |
| 122 | 108 Kinds of persons in philosophy |
| 123 | 109 Historical treatment of philosophy |
| 124 | 110 Metaphysics |
| 125 | 110 Metaphysics |
| 126 | 111 Ontology |
| 127 | 112 No longer used—formerly Methodology |
| 128 | 113 Cosmology (Philosophy of nature) |
| 129 | 114 Space |
| 130 | 115 Time |
| 131 | 116 Change |
| 132 | 117 Structure |
| 133 | 118 Force & Energy |
| 134 | 119 Number & quantity |
| 135 | 120 Epistemology, causation, humankind |
| 136 | 120 Epistemology, causation & humankind |
| 137 | 121 Epistemology (Theory of knowledge) |
| 138 | 122 Causation |
| 139 | 123 Determinism & indeterminism |
| 140 | 124 Teleology |
| 141 | 125 No longer used—formerly Infinity |
| 142 | 126 The self |
| 143 | 127 The unconscious & the subconscious |
| 144 | 128 Humankind |
| 145 | 129 Origin & destiny of individual souls |
| 146 | 130 Paranormal phenomena |
| 147 | 130 Parapsychology & occultism |
| 148 | 131 Occult methods for achieving well-being |
| 149 | 132 No longer used—formerly Mental derangements |
| 150 | 133 Parapsychology & occultism |
| 151 | 134 No longer used—formerly Mesmerism and Clairvoyance |
| 152 | 135 Dreams & mysteries |
| 153 | 136 No longer used—formerly Mental characteristics |
| 154 | 137 Divinatory graphology |
| 155 | 138 Physiognomy |
| 156 | 139 Phrenology |
| 157 | 140 Specific philosophical schools |
| 158 | 140 Specific philosophical schools |
| 159 | 141 Idealism & related systems |
| 160 | 142 Critical philosophy |
| 161 | 143 Intuitionism & Bergsonism |
| 162 | 144 Humanism & related systems |
| 163 | 145 Sensationalism |
| 164 | 146 Naturalism & related systems |
| 165 | 147 Pantheism & related systems |
| 166 | 148 Liberalism, eclecticism, traditionalism |
| 167 | 149 Other philosophical systems |
| 168 | 150 Psychology |
| 169 | 150 Psychology |
| 170 | 151 No longer used—formerly Intellect |
| 171 | 152 Perception, movement, emotions, drives |
| 172 | 153 Mental processes & intelligence |
| 173 | 154 Subconscious & altered states |
| 174 | 155 Differential & developmental psychology |
| 175 | 156 Comparative psychology |
| 176 | 157 No longer used—formerly Emotions |
| 177 | 158 Applied psychology |
| 178 | 159 No longer used—formerly Will |
| 179 | 160 Logic |
| 180 | 160 Logic |
| 181 | 161 Induction |
| 182 | 162 Deduction |
| 183 | 163 Not assigned or no longer used |
| 184 | 164 Not assigned or no longer used |
| 185 | 165 Fallacies & sources of error |
| 186 | 166 Syllogisms |
| 187 | 167 Hypotheses |
| 188 | 168 Argument & persuasion |
| 189 | 169 Analogy |
| 190 | 170 Ethics (Moral philosophy) |
| 191 | 170 Ethics |
| 192 | 171 Systems & doctrines |
| 193 | 172 Political ethics |
| 194 | 173 Ethics of family relationships |
| 195 | 174 Economic & professional ethics |
| 196 | 175 Ethics of recreation & leisure |
| 197 | 176 Ethics of sex & reproduction |
| 198 | 177 Ethics of social relations |
| 199 | 178 Ethics of consumption |
| 200 | 179 Other ethical norms |
| 201 | 180 Ancient, medieval, Oriental philosophy |
| 202 | 180 Ancient, medieval & eastern philosophy |
| 203 | 181 Oriental philosophy |
| 204 | 182 Pre-Socratic Greek philosophies |
| 205 | 183 Sophistic & Socratic philosophies |
| 206 | 184 Platonic philosophy |
| 207 | 185 Aristotelian philosophy |
| 208 | 186 Skeptic and Neoplatonic philosophies |
| 209 | 187 Epicurean philosophy |
| 210 | 188 Stoic philosophy |
| 211 | 189 Medieval Western philosophy |
| 212 | 190 Modern Western philosophy (19th-century, 20th-century) |
| 213 | 190 Modern western philosophy |
| 214 | 191 Modern Western philosophy United States & Canada |
| 215 | 192 Modern Western philosophy British Isles |
| 216 | 193 Modern Western philosophy Germany & Austria |
| 217 | 194 Modern Western philosophy France |
| 218 | 195 Modern Western philosophy Italy |
| 219 | 196 Modern Western philosophy Spain & Portugal |
| 220 | 197 Modern Western philosophy Soviet Union |
| 221 | 198 Modern Western philosophy Scandinavia |
| 222 | 199 Modern Western philosophy Other geographical areas |
| 223 | 200 – Religion |
| 224 | 200 Religion |
| 225 | 200 Religion |
| 226 | 201 Religious mythology, general classes of religion, interreligious relations and attitudes, social theology |
| 227 | 202 Doctrines |
| 228 | 203 Public worship and other practices |
| 229 | 204 Religious experience, life, practice |
| 230 | 205 Religious ethics |
| 231 | 206 Leaders and organization |
| 232 | 207 Missions and religious education |
| 233 | 208 Sources |
| 234 | 209 Sects and reform movements |
| 235 | 210 Natural theology |
| 236 | 211 Concepts of God |
| 237 | 212 Existence, attributes of God |
| 238 | 213 Creation |
| 239 | 214 Theodicy |
| 240 | 215 Science & religion |
| 241 | 216 No longer used—formerly Evil |
| 242 | 217 No longer used—formerly Prayer |
| 243 | 218 Humankind |
| 244 | 219 No longer used—formerly Analogies |
| 245 | 220 Bible |
| 246 | 221 Old Testament |
| 247 | 222 Historical books of Old Testament |
| 248 | 223 Poetic books of Old Testament |
| 249 | 224 Prophetic books of Old Testament |
| 250 | 225 New Testament |
| 251 | 226 Gospels & Acts |
| 252 | 227 Epistles |
| 253 | 228 Revelation (Apocalypse) |
| 254 | 229 Apocrypha & pseudepigrapha |
| 255 | 230 Christian theology |
| 256 | 231 God |
| 257 | 232 Jesus Christ & his family |
| 258 | 233 Humankind |
| 259 | 234 Salvation (Soteriology) & grace |
| 260 | 235 Spiritual beings |
| 261 | 236 Eschatology |
| 262 | 237 No longer used—formerly Future state |
| 263 | 238 Creeds & catechisms |
| 264 | 239 Apologetics & polemics |
| 265 | 240 Christian moral & devotional theology |
| 266 | 241 Moral theology |
| 267 | 242 Devotional literature |
| 268 | 243 Evangelistic writings for individuals |
| 269 | 244 No longer used—formerly Religious fiction |
| 270 | 245 No longer used—formerly Hymnology |
| 271 | 246 Use of art in Christianity |
| 272 | 247 Church furnishings & articles |
| 273 | 248 Christian experience, practice, life |
| 274 | 249 Christian observances in family life |
| 275 | 250 Christian orders & local church |
| 276 | 251 Preaching (Homiletics) |
| 277 | 252 Texts of sermons |
| 278 | 253 Pastoral office (Pastoral theology) |
| 279 | 254 Parish government & administration |
| 280 | 255 Religious congregations & orders |
| 281 | 256 No longer used—formerly Religious societies |
| 282 | 257 No longer used—formerly Parochial schools, libraries, etc. |
| 283 | 258 No longer used—formerly Parochial medicine |
| 284 | 259 Activities of the local church |
| 285 | 260 Christian social theology |
| 286 | 261 Social theology |
| 287 | 262 Ecclesiology |
| 288 | 263 Times, places of religious observance |
| 289 | 264 Public worship |
| 290 | 265 Sacraments, other rites & acts |
| 291 | 266 Missions |
| 292 | 267 Associations for religious work |
| 293 | 268 Religious education |
| 294 | 269 Spiritual renewal |
| 295 | 270 Christian church history |
| 296 | 271 Religious orders in church history |
| 297 | 272 Persecutions in church history |
| 298 | 273 Heresies in church history |
| 299 | 274 Christian church in Europe |
| 300 | 275 Christian church in Asia |
| 301 | 276 Christian church in Africa |
| 302 | 277 Christian church in North America |
| 303 | 278 Christian church in South America |
| 304 | 279 Christian church in other areas |
| 305 | 280 Christian denominations & sects |
| 306 | 281 Early church & Eastern churches |
| 307 | 282 Roman Catholic Church |
| 308 | 283 Anglican churches |
| 309 | 284 Protestants of Continental origin |
| 310 | 285 Presbyterian, Reformed, Congregational |
| 311 | 286 Baptist, Disciples of Christ, Adventist |
| 312 | 287 Methodist & related churches |
| 313 | 288 No longer used—formerly Unitarian |
| 314 | 289 Other denominations & sects |
| 315 | 290 Other & comparative religions |
| 316 | 291 Comparative religion |
| 317 | 292 Classical (Greek & Roman) religion |
| 318 | 293 Germanic religion |
| 319 | 294 Religions of Indic origin |
| 320 | 295 Zoroastrianism (Mazdaism, Parseeism) |
| 321 | 296 Judaism |
| 322 | 297 Islam, Bábism & Bahá'í Faith |
| 323 | 298 No longer used—formerly Mormonism |
| 324 | 299 Other religions |
| 325 | 300 – Social sciences |
| 326 | 300 Social sciences, sociology & anthropology |
| 327 | 300 Social sciences |
| 328 | 301 Sociology & anthropology |
| 329 | 302 Social interaction |
| 330 | 303 Social processes |
| 331 | 304 Factors affecting social behavior |
| 332 | 305 Social groups |
| 333 | 306 Culture & institutions |
| 334 | 307 Communities |
| 335 | 308 No longer used—formerly Polygraphy |
| 336 | 309 No longer used—formerly History of sociology |
| 337 | 310 General statistics |
| 338 | 311 No longer used—formerly Theory and methods |
| 339 | 312 No longer used—formerly Population |
| 340 | 313 No longer used—formerly Special topics |
| 341 | 314 General statistics Of Europe |
| 342 | 315 General statistics Of Asia |
| 343 | 316 General statistics Of Africa |
| 344 | 317 General statistics Of North America |
| 345 | 318 General statistics Of South America |
| 346 | 319 General statistics Of other parts of the world |
| 347 | 320 Political science |
| 348 | 321 Systems of governments & states |
| 349 | 322 Relation of state to organized groups |
| 350 | 323 Civil & political rights |
| 351 | 324 The political process |
| 352 | 325 International migration & colonization |
| 353 | 326 Slavery & emancipation |
| 354 | 327 International relations |
| 355 | 328 The legislative process |
| 356 | 329 Not assigned or no longer used |
| 357 | 330 Economics |
| 358 | 331 Labor economics |
| 359 | 332 Financial economics |
| 360 | 333 Land economics |
| 361 | 334 Cooperatives |
| 362 | 335 Socialism & related systems |
| 363 | 336 Public finance |
| 364 | 337 International economics |
| 365 | 338 Production |
| 366 | 339 Macroeconomics & related topics |
| 367 | 340 Law |
| 368 | 341 International law |
| 369 | 342 Constitutional & administrative law |
| 370 | 343 Military, tax, trade, industrial law |
| 371 | 344 Social, labor, welfare, & related law |
| 372 | 345 Criminal law |
| 373 | 346 Private law |
| 374 | 347 Civil procedure & courts |
| 375 | 348 Law (Statutes), regulations, cases |
| 376 | 349 Law of specific jurisdictions & areas |
| 377 | 350 Public administration |
| 378 | 351 Of central governments |
| 379 | 352 Of local governments |
| 380 | 353 of U.S. federal & state governments |
| 381 | 354 Of specific central governments |
| 382 | 355 Military science |
| 383 | 356 Foot forces & warfare |
| 384 | 357 Mounted forces & warfare |
| 385 | 358 Other specialized forces & services |
| 386 | 359 Sea (Naval) forces & warfare |
| 387 | 360 Social services; association |
| 388 | 361 General social problems |
| 389 | 362 Social welfare problems & services |
| 390 | 363 Other social problems & services |
| 391 | 364 Criminology |
| 392 | 365 Penal & related institutions |
| 393 | 366 Association |
| 394 | 367 General clubs |
| 395 | 368 Insurance |
| 396 | 369 Miscellaneous kinds of associations |
| 397 | 370 Education |
| 398 | 371 School management; special education |
| 399 | 372 Elementary education |
| 400 | 373 Secondary education |
| 401 | 374 Adult education |
| 402 | 375 Curriculums |
| 403 | 376 No longer used—formerly Education of women |
| 404 | 377 No longer used—formerly Ethical education |
| 405 | 378 Higher education |
| 406 | 379 Government regulation, control, support |
| 407 | 380 Commerce, communications, transport |
| 408 | 381 Internal commerce (Domestic trade) |
| 409 | 382 International commerce (Foreign trade) |
| 410 | 383 Postal communication |
| 411 | 384 Communications; Telecommunication |
| 412 | 385 Railroad transportation |
| 413 | 386 Inland waterway & ferry transportation |
| 414 | 387 Water, air, space transportation |
| 415 | 388 Transportation; Ground transportation |
| 416 | 389 Metrology & standardization |
| 417 | 390 Customs, etiquette, folklore |
| 418 | 391 Costume & personal appearance |
| 419 | 392 Customs of life cycle & domestic life |
| 420 | 393 Death customs |
| 421 | 394 General customs |
| 422 | 395 Etiquette (Manners) |
| 423 | 396 No longer used—formerly Women's position and treatment |
| 424 | 397 No longer used—formerly outcast studies |
| 425 | 398 Folklore |
| 426 | 399 Customs of war & diplomacy |
| 427 | 400 – Language |
| 428 | 400 Language |
| 429 | 400 Language |
| 430 | 401 Philosophy & theory |
| 431 | 402 Miscellany |
| 432 | 403 Dictionaries & encyclopedias |
| 433 | 404 Special topics |
| 434 | 405 Serial publications |
| 435 | 406 Organizations & management |
| 436 | 407 Education, research, related topics |
| 437 | 408 With respect to kinds of persons |
| 438 | 409 Geographical & persons treatment |
| 439 | 410 Linguistics |
| 440 | 411 Writing systems |
| 441 | 412 Etymology |
| 442 | 413 Dictionaries |
| 443 | 414 Phonology |
| 444 | 415 Structural systems (Grammar) |
| 445 | 416 No longer used—formerly Prosody (linguistics) |
| 446 | 417 Dialectology & historical linguistics |
| 447 | 418 Standard usage; Applied linguistics |
| 448 | 419 Verbal language not spoken or written |
| 449 | 420 English & Old English |
| 450 | 421 English writing system & phonology |
| 451 | 422 English etymology |
| 452 | 423 English dictionaries |
| 453 | 424 No longer used—formerly English thesauruses |
| 454 | 425 English grammar |
| 455 | 426 No longer used—formerly English prosodies |
| 456 | 427 English language variations |
| 457 | 428 Standard English usage |
| 458 | 429 Old English (Anglo-Saxon) |
| 459 | 430 Germanic languages; German |
| 460 | 431 German writing system & phonology |
| 461 | 432 German etymology |
| 462 | 433 German dictionaries |
| 463 | 434 Not assigned or no longer used |
| 464 | 435 German grammar |
| 465 | 436 Not assigned or no longer used |
| 466 | 437 German language variations |
| 467 | 438 Standard German usage |
| 468 | 439 Other Germanic languages |
| 469 | 440 Romance languages; French |
| 470 | 441 French writing system & phonology |
| 471 | 442 French etymology |
| 472 | 443 French dictionaries |
| 473 | 444 Not assigned or no longer used |
| 474 | 445 French grammar |
| 475 | 446 Not assigned or no longer used |
| 476 | 447 French language variations |
| 477 | 448 Standard French usage |
| 478 | 449 Provençal & Catalan |
| 479 | 450 Italian, Romanian, Rhaeto-Romanic |
| 480 | 451 Italian writing system & phonology |
| 481 | 452 Italian etymology |
| 482 | 453 Italian dictionaries |
| 483 | 454 Not assigned or no longer used |
| 484 | 455 Italian grammar |
| 485 | 456 Not assigned or no longer used |
| 486 | 457 Italian language variations |
| 487 | 458 Standard Italian usage |
| 488 | 459 Romanian & Rhaeto-Romanic |
| 489 | 460 Spanish & Portuguese languages |
| 490 | 461 Spanish writing system & phonology |
| 491 | 462 Spanish etymology |
| 492 | 463 Spanish dictionaries |
| 493 | 464 Not assigned or no longer used |
| 494 | 465 Spanish grammar |
| 495 | 466 Not assigned or no longer used |
| 496 | 467 Spanish language variations |
| 497 | 468 Standard Spanish usage |
| 498 | 469 Portuguese |
| 499 | 470 Italic; Latin |
| 500 | 471 Classical Latin writing & phonology |
| 501 | 472 Classical Latin etymology & phonology |
| 502 | 473 Classical Latin dictionaries |
| 503 | 474 Not assigned or no longer used |
| 504 | 475 Classical Latin grammar |
| 505 | 476 Not assigned or no longer used |
| 506 | 477 Old, Postclassical, Vulgar Latin |
| 507 | 478 Classical Latin usage |
| 508 | 479 Other Italic languages |
| 509 | 480 Hellenic languages; Classical Greek |
| 510 | 481 Classical Greek writing & phonology |
| 511 | 482 Classical Greek etymology |
| 512 | 483 Classical Greek dictionaries |
| 513 | 484 Not assigned or no longer used |
| 514 | 485 Classical Greek grammar |
| 515 | 486 Not assigned or no longer used |
| 516 | 487 Preclassical & postclassical Greek |
| 517 | 488 Classical Greek usage |
| 518 | 489 Other Hellenic languages |
| 519 | 490 Other languages |
| 520 | 491 East Indo-European & Celtic languages |
| 521 | 492 Afro-Asiatic languages; Semitic |
| 522 | 493 Non-Semitic Afro-Asiatic languages |
| 523 | 494 Ural-Altaic, Paleosiberian, Dravidian |
| 524 | 495 Languages of East & Southeast Asia |
| 525 | 496 African languages |
| 526 | 497 North American native languages |
| 527 | 498 South American native languages |
| 528 | 499 Miscellaneous languages |
| 529 | 500 – Science |
| 530 | 500 Sciences |
| 531 | 500 Natural sciences & mathematics |
| 532 | 501 Philosophy & theory |
| 533 | 502 Miscellany |
| 534 | 503 Dictionaries & encyclopedias |
| 535 | 504 Not assigned or no longer used |
| 536 | 505 Serial publications |
| 537 | 506 Organizations & management |
| 538 | 507 Education, research, related topics |
| 539 | 508 Natural history |
| 540 | 509 Historical, geographic, persons treatment |
| 541 | 510 Mathematics |
| 542 | 511 General principles |
| 543 | 512 Algebra & number theory |
| 544 | 513 Arithmetic |
| 545 | 514 Topology |
| 546 | 515 Analysis |
| 547 | 516 Geometry |
| 548 | 517 Not assigned or no longer used |
| 549 | 518 Numerical analysis |
| 550 | 519 Probabilities & applied mathematics |
| 551 | 520 Astronomy & allied sciences |
| 552 | 521 Celestial mechanics |
| 553 | 522 Techniques, equipment, materials |
| 554 | 523 Specific celestial bodies & phenomena |
| 555 | 524 Not assigned or no longer used |
| 556 | 525 Earth (Astronomical geography) |
| 557 | 526 Mathematical geography |
| 558 | 527 Celestial navigation |
| 559 | 528 Ephemerides |
| 560 | 529 Chronology |
| 561 | 530 Physics |
| 562 | 531 Classical mechanics; Solid mechanics |
| 563 | 532 Fluid mechanics; Liquid mechanics |
| 564 | 533 Gas mechanics |
| 565 | 534 Sound & related vibrations |
| 566 | 535 Light & paraphotic phenomena |
| 567 | 536 Heat |
| 568 | 537 Electricity & electronics |
| 569 | 538 Magnetism |
| 570 | 539 Modern physics |
| 571 | 540 Chemistry & allied sciences |
| 572 | 541 Physical & theoretical chemistry |
| 573 | 542 Techniques, equipment, materials |
| 574 | 543 Analytical chemistry |
| 575 | 544 Qualitative analysis |
| 576 | 545 Quantitative analysis |
| 577 | 546 Inorganic chemistry |
| 578 | 547 Organic chemistry |
| 579 | 548 Crystallography |
| 580 | 549 Mineralogy |
| 581 | 550 Earth sciences |
| 582 | 551 Geology, hydrology, meteorology |
| 583 | 552 Petrology |
| 584 | 553 Economic geology |
| 585 | 554 Earth sciences of Europe |
| 586 | 555 Earth sciences of Asia |
| 587 | 556 Earth sciences of Africa |
| 588 | 557 Earth sciences of North America |
| 589 | 558 Earth sciences of South America |
| 590 | 559 Earth sciences of other areas |
| 591 | 560 Paleontology; Paleozoology |
| 592 | 561 Paleobotany |
| 593 | 562 Fossil invertebrates |
| 594 | 563 Fossil primitive phyla |
| 595 | 564 Fossil Mollusca & Molluscoidea |
| 596 | 565 Other fossil invertebrates |
| 597 | 566 Fossil Vertebrata (Fossil Craniata) |
| 598 | 567 Fossil cold-blooded vertebrates |
| 599 | 568 Fossil Aves (Fossil birds) |
| 600 | 569 Fossil Mammalia |
| 601 | 570 Life sciences |
| 602 | 571 Physiology |
| 603 | 572 Biochemistry |
| 604 | 573 Physiological systems of animals |
| 605 | 574 Not assigned or no longer used |
| 606 | 575 Physiological systems of plants |
| 607 | 576 Genetics and evolution |
| 608 | 577 Ecology |
| 609 | 578 Natural history of organisms |
| 610 | 579 Microorganisms, fungi, algae |
| 611 | 580 Plants |
| 612 | 581 Botany |
| 613 | 582 Plants noted for specific vegetative characteristics and flowers |
| 614 | 583 Dicotyledones |
| 615 | 584 Monocotyledones |
| 616 | 585 Gymnospermae (Pinophyta) |
| 617 | 586 Cryptogamia (Seedless plants) |
| 618 | 587 Pteridophyta (Vascular cryptogams) |
| 619 | 588 Bryophyta |
| 620 | 589 Not assigned or no longer used |
| 621 | 590 Zoological sciences/Animals |
| 622 | 591 Zoology |
| 623 | 592 Invertebrates |
| 624 | 593 Protozoa, Echinodermata, related phyla |
| 625 | 594 Mollusca & Molluscoidea |
| 626 | 595 Other invertebrates |
| 627 | 596 Vertebrata (Craniata, Vertebrates) |
| 628 | 597 Cold-blooded vertebrates, fishes |
| 629 | 598 Aves (Birds) |
| 630 | 599 Mammalia (Mammals) |
| 631 | 600 – Technology |
| 632 | 600 Technology (Applied sciences) |
| 633 | 600 Technology |
| 634 | 601 Philosophy & theory |
| 635 | 602 Miscellany |
| 636 | 603 Dictionaries & encyclopedias |
| 637 | 604 Special topics |
| 638 | 605 Serial publications |
| 639 | 606 Organizations |
| 640 | 607 Education, research, related topics |
| 641 | 608 Invention & patents |
| 642 | 609 Historical, geographic, persons treatment |
| 643 | 610 Medical sciences; Medicine |
| 644 | 611 Human anatomy, cytology, histology |
| 645 | 612 Human physiology |
| 646 | 613 Promotion of health |
| 647 | 614 Incidence & prevention of disease |
| 648 | 617 Surgery & related medical specialties |
| 649 | 618 Gynecology & other medical specialties |
| 650 | 619 Experimental medicine |
| 651 | 620 Engineering & Applied operations |
| 652 | 621 Applied physics |
| 653 | 622 Mining & related operations |
| 654 | 623 Military & nautical engineering |
| 655 | 624 Civil engineering |
| 656 | 625 Engineering of railroads, roads |
| 657 | 626 Not assigned or no longer used |
| 658 | 627 Hydraulic engineering |
| 659 | 628 Sanitary & municipal engineering |
| 660 | 629 Other branches of engineering |
| 661 | 630 Agriculture |
| 662 | 631 Techniques, equipment, materials |
| 663 | 632 Plant injuries, diseases, pests |
| 664 | 633 Field & plantation crops |
| 665 | 634 Orchards, fruits, forestry |
| 666 | 635 Garden crops (Horticulture) |
| 667 | 636 Animal husbandry |
| 668 | 637 Processing dairy & related products |
| 669 | 638 Insect culture |
| 670 | 639 Hunting, fishing, conservation |
| 671 | 640 Home economics & family living |
| 672 | 641 Food & drink |
| 673 | 642 Meals & table service |
| 674 | 643 Housing & household equipment |
| 675 | 644 Household utilities |
| 676 | 645 Household furnishings |
| 677 | 646 Sewing, clothing, personal living |
| 678 | 647 Management of public households |
| 679 | 648 Housekeeping |
| 680 | 649 Child rearing & home care of sick |
| 681 | 650 Management & auxiliary services |
| 682 | 651 Office services |
| 683 | 652 Processes of written communication |
| 684 | 653 Shorthand |
| 685 | 654 Not assigned or no longer used |
| 686 | 655 Not assigned or no longer used |
| 687 | 656 Not assigned or no longer used |
| 688 | 657 Accounting |
| 689 | 658 General management |
| 690 | 659 Advertising & public relations |
| 691 | 660 Chemical engineering |
| 692 | 661 Industrial chemicals technology |
| 693 | 662 Explosives, fuels technology |
| 694 | 663 Beverage technology |
| 695 | 664 Food technology |
| 696 | 665 Industrial oils, fats, waxes, gases |
| 697 | 666 Ceramic & allied technologies |
| 698 | 667 Cleaning, color, related technologies |
| 699 | 668 Technology of other organic products |
| 700 | 669 Metallurgy |
| 701 | 670 Manufacturing |
| 702 | 671 Metalworking & metal products |
| 703 | 672 Iron, steel, other iron alloys |
| 704 | 673 Nonferrous metals |
| 705 | 674 Lumber processing, wood products, cork |
| 706 | 675 Leather & fur processing |
| 707 | 676 Pulp & paper technology |
| 708 | 677 Textiles |
| 709 | 678 Elastomers & elastomer products |
| 710 | 679 Other products of specific materials |
| 711 | 680 Manufacture for specific uses |
| 712 | 681 Precision instruments & other devices |
| 713 | 682 Small forge work (Blacksmithing) |
| 714 | 683 Hardware & household appliances |
| 715 | 684 Furnishings & home workshops |
| 716 | 685 Leather, fur, related products |
| 717 | 686 Printing & related activities |
| 718 | 687 Clothing |
| 719 | 688 Other final products & packaging |
| 720 | 689 Not assigned or no longer used |
| 721 | 690 Buildings |
| 722 | 691 Building materials |
| 723 | 692 Auxiliary construction practices |
| 724 | 693 Specific materials & purposes |
| 725 | 694 Wood construction; Carpentry |
| 726 | 695 Roof covering |
| 727 | 696 Utilities |
| 728 | 697 Heating, ventilating, air-conditioning |
| 729 | 698 Detail finishing |
| 730 | 699 Not assigned or no longer used |
| 731 | 700 – Arts |
| 732 | 700 Arts |
| 733 | 700 The Arts; fine & decorative arts |
| 734 | 701 Philosophy & theory |
| 735 | 702 Miscellany |
| 736 | 703 Dictionaries & encyclopedias |
| 737 | 704 Special topics |
| 738 | 705 Serial publications |
| 739 | 706 Organizations & management |
| 740 | 707 Education, research, related topics |
| 741 | 708 Galleries, museums, private collections |
| 742 | 709 Historical, areas, persons treatment |
| 743 | 710 Civic & landscape art |
| 744 | 711 Area planning (Civic art) |
| 745 | 712 Landscape architecture |
| 746 | 713 Landscape architecture of trafficways |
| 747 | 714 Water features |
| 748 | 715 Woody plants |
| 749 | 716 Herbaceous plants |
| 750 | 717 Structures |
| 751 | 718 Landscape design of cemeteries |
| 752 | 719 Natural landscapes |
| 753 | 720 Architecture |
| 754 | 721 Architectural structure |
| 755 | 722 Architecture to ca. 300 |
| 756 | 723 Architecture from ca. 300 to 1399 |
| 757 | 724 Architecture from 1400 |
| 758 | 725 Public structures |
| 759 | 726 Buildings for religious purposes |
| 760 | 727 Buildings for education & research |
| 761 | 728 Residential & related buildings |
| 762 | 729 Design & decoration |
| 763 | 730 Plastic arts; Sculpture |
| 764 | 731 Processes, forms, subjects of sculpture |
| 765 | 732 Sculpture to ca. 500 |
| 766 | 733 Greek, Etruscan, Roman sculpture |
| 767 | 734 Sculpture from ca. 500 to 1399 |
| 768 | 735 Sculpture from 1400 |
| 769 | 736 Carving & carvings |
| 770 | 737 Numismatics & sigillography |
| 771 | 738 Ceramic arts |
| 772 | 739 Art metalwork |
| 773 | 740 Drawing & decorative arts |
| 774 | 741 Drawing & drawings |
| 775 | 742 Perspective (graphical) |
| 776 | 743 Drawing & drawings by subject |
| 777 | 744 Not assigned or no longer used |
| 778 | 745 Decorative arts |
| 779 | 746 Textile arts |
| 780 | 747 Interior decoration |
| 781 | 748 Glass |
| 782 | 749 Furniture & accessories |
| 783 | 750 Painting & paintings |
| 784 | 751 Techniques, equipment, forms |
| 785 | 752 Color |
| 786 | 753 Symbolism, allegory, mythology, legend |
| 787 | 754 Genre paintings |
| 788 | 755 Religion & religious symbolism |
| 789 | 756 Not assigned or no longer used |
| 790 | 757 Human figures & their parts |
| 791 | 758 Other subjects |
| 792 | 759 Geographical, historical, areas, persons treatment |
| 793 | 760 Graphic arts; Printmaking & prints |
| 794 | 761 Relief processes (Block printing) |
| 795 | 762 Not assigned or no longer used |
| 796 | 763 Lithographic (Planographic) processes |
| 797 | 764 Chromolithography & serigraphy |
| 798 | 765 Metal engraving |
| 799 | 766 Mezzotinting & related processes |
| 800 | 767 Etching & drypoint |
| 801 | 768 Not assigned or no longer used |
| 802 | 769 Prints |
| 803 | 770 Photography & photographs |
| 804 | 771 Techniques, equipment, materials |
| 805 | 772 Metallic salt processes |
| 806 | 773 Pigment processes of printing |
| 807 | 774 Holography |
| 808 | 775 Digital photography |
| 809 | 776 Computer art |
| 810 | 777 Not assigned or no longer used |
| 811 | 778 Fields & kinds of photography |
| 812 | 779 Photographs |
| 813 | 780 Music |
| 814 | 781 General principles & musical forms |
| 815 | 782 Vocal music |
| 816 | 783 Music for single voices; The voice |
| 817 | 784 Instruments & Instrumental ensembles |
| 818 | 785 Chamber music |
| 819 | 786 Keyboard & other instruments |
| 820 | 787 Stringed instruments (Chordophones) |
| 821 | 788 Wind instruments (Aerophones) |
| 822 | 789 Not assigned or no longer used |
| 823 | 790 Recreational & performing arts |
| 824 | 791 Public performances |
| 825 | 792 Stage presentations |
| 826 | 793 Indoor games & amusements |
| 827 | 794 Indoor games of skill |
| 828 | 795 Games of chance |
| 829 | 796 Athletic & outdoor sports & games |
| 830 | 797 Aquatic & air sports |
| 831 | 798 Equestrian sports & animal racing |
| 832 | 799 Fishing, hunting, shooting |
| 833 | 800 – Literature |
| 834 | 800 Literature rhetoric & criticism |
| 835 | 800 Literature & rhetoric |
| 836 | 801 Philosophy & theory |
| 837 | 802 Miscellany |
| 838 | 803 Dictionaries & encyclopedias |
| 839 | 804 Not assigned or no longer used |
| 840 | 805 Serial publications |
| 841 | 806 Organizations |
| 842 | 807 Education, research, related topics |
| 843 | 808 Rhetoric & collections of literature |
| 844 | 809 Literary history & criticism |
| 845 | 810 American literature in English |
| 846 | 811 Poetry |
| 847 | 812 Drama |
| 848 | 813 Fiction |
| 849 | 814 Essays |
| 850 | 815 Speeches |
| 851 | 816 Letters |
| 852 | 817 Satire & humor |
| 853 | 818 Miscellaneous writings |
| 854 | 819 Not assigned or no longer used |
| 855 | 820 English & Old English literatures |
| 856 | 821 English poetry |
| 857 | 822 English drama |
| 858 | 823 English fiction |
| 859 | 824 English essays |
| 860 | 825 English speeches |
| 861 | 826 English letters |
| 862 | 827 English satire & humor |
| 863 | 828 English miscellaneous writings |
| 864 | 829 Old English (Anglo-Saxon) |
| 865 | 830 Literatures of Germanic languages |
| 866 | 831 German poetry |
| 867 | 832 German drama |
| 868 | 833 German fiction |
| 869 | 834 German essays |
| 870 | 835 German speeches |
| 871 | 836 German letters |
| 872 | 837 German satire & humor |
| 873 | 838 German miscellaneous writings |
| 874 | 839 Other Germanic literatures |
| 875 | 840 Literatures of Romance languages |
| 876 | 841 French poetry |
| 877 | 842 French drama |
| 878 | 843 French fiction |
| 879 | 844 French essays |
| 880 | 845 French speeches |
| 881 | 846 French letters |
| 882 | 847 French satire & humor |
| 883 | 848 French miscellaneous writings |
| 884 | 849 Provençal & Catalan |
| 885 | 850 Italian, Romanian, Rhaeto-Romanic |
| 886 | 851 Italian poetry |
| 887 | 852 Italian drama |
| 888 | 853 Italian fiction |
| 889 | 854 Italian essays |
| 890 | 855 Italian speeches |
| 891 | 856 Italian letters |
| 892 | 857 Italian satire & humor |
| 893 | 858 Italian miscellaneous writings |
| 894 | 859 Romanian & Rhaeto-Romanic |
| 895 | 860 Spanish & Portuguese literatures |
| 896 | 861 Spanish poetry |
| 897 | 862 Spanish drama |
| 898 | 863 Spanish fiction |
| 899 | 864 Spanish essays |
| 900 | 865 Spanish speeches |
| 901 | 866 Spanish letters |
| 902 | 867 Spanish satire & humor |
| 903 | 868 Spanish miscellaneous writings |
| 904 | 869 Portuguese |
| 905 | 870 Italic literatures; Latin |
| 906 | 871 Latin poetry |
| 907 | 872 Latin dramatic poetry & drama |
| 908 | 873 Latin epic poetry & fiction |
| 909 | 874 Latin lyric poetry |
| 910 | 875 Latin speeches |
| 911 | 876 Latin letters |
| 912 | 877 Latin satire & humor |
| 913 | 878 Latin miscellaneous writings |
| 914 | 879 Literatures of other Italic languages |
| 915 | 880 Hellenic literatures; Classical Greek |
| 916 | 881 Classical Greek poetry |
| 917 | 882 Classical Greek drama |
| 918 | 883 Classical Greek epic poetry & fiction |
| 919 | 884 Classical Greek lyric poetry |
| 920 | 885 Classical Greek speeches |
| 921 | 886 Classical Greek letters |
| 922 | 887 Classical Greek satire & humor |
| 923 | 888 Classical Greek miscellaneous writings |
| 924 | 889 Modern Greek |
| 925 | 890 Literatures of other languages |
| 926 | 891 East Indo-European & Celtic |
| 927 | 892 Afro-Asiatic literatures Semitic |
| 928 | 893 Non-Semitic Afro-Asiatic literatures |
| 929 | 894 Ural-Altaic, Paleosiberian, Dravidian |
| 930 | 895 Literatures of East & Southeast Asia |
| 931 | 896 African literatures |
| 932 | 897 North American native literatures |
| 933 | 898 South American native literatures |
| 934 | 899 Other literatures |
| 935 | 900 – History, geography,(& biography) |
| 936 | 900 history |
| 937 | 900 History & geographie |
| 938 | 901 History & geographie |
| 939 | 901 Philosophy & theory |
| 940 | 902 Miscellany |
| 941 | 903 Dictionaries & encyclopedias |
| 942 | 904 Collected accounts of events |
| 943 | 905 Serial publications |
| 944 | 906 Organizations & management |
| 945 | 907 Education, research, related topics |
| 946 | 908 With respect to kinds of persons |
| 947 | 909 World history |
| 948 | 910 Geography & travel |
| 949 | 911 Historical geography |
| 950 | 912 Graphic representations of earth |
| 951 | 913 Ancient world |
| 952 | 914 Europe |
| 953 | 915 Asia |
| 954 | 916 Africa |
| 955 | 917 North America |
| 956 | 918 South America |
| 957 | 919 Other areas |
| 958 | 920 Biography, genealogy, insignia |
| 959 | 921-928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name. |
| 960 | 929 Genealogy, names, insignia |
| 961 | 930 History of ancient world |
| 962 | 931 History of ancient world; China |
| 963 | 932 History of ancient world; Egypt |
| 964 | 933 History of ancient world; Palestine |
| 965 | 934 History of ancient world; India |
| 966 | 935 History of ancient world; Mesopotamia & Iranian Plateau |
| 967 | 936 History of ancient world; Europe north & west of Italy |
| 968 | 937 History of ancient world; Italy & adjacent territories |
| 969 | 938 History of ancient world; Greece |
| 970 | 939 History of ancient world; Other parts of ancient world |
| 971 | 940 General history of Europe |
| 972 | 941 General history of Europe; British Isles |
| 973 | 942 General history of Europe; England & Wales |
| 974 | 943 General history of Europe; Central Europe; Germany |
| 975 | 944 General history of Europe; France & Monaco |
| 976 | 945 General history of Europe; Italian Peninsula & adjacent islands |
| 977 | 946 General history of Europe; Iberian Peninsula & adjacent islands |
| 978 | 947 General history of Europe; Eastern Europe; Russia |
| 979 | 948 General history of Europe; Northern Europe; Scandinavia |
| 980 | 949 General history of Europe; Other parts of Europe |
| 981 | 950 General history of Asia; Far East |
| 982 | 951 General history of Asia; China & adjacent areas |
| 983 | 952 General history of Asia; Japan |
| 984 | 953 General history of Asia; Arabian Peninsula & adjacent areas |
| 985 | 954 General history of Asia; South Asia; India |
| 986 | 955 General history of Asia; Iran |
| 987 | 956 General history of Asia; Middle East (Near East) |
| 988 | 957 General history of Asia; Siberia (Asiatic Russia) |
| 989 | 958 General history of Asia; Central Asia |
| 990 | 959 General history of Asia; Southeast Asia |
| 991 | 960 General history of Africa |
| 992 | 961 General history of Africa; Tunisia & Libya |
| 993 | 962 General history of Africa; Egypt & Sudan |
| 994 | 963 General history of Africa; Ethiopia |
| 995 | 964 General history of Africa; Morocco & Canary Islands |
| 996 | 965 General history of Africa; Algeria |
| 997 | 966 General history of Africa; West Africa & offshore islands |
| 998 | 967 General history of Africa; Central Africa & offshore islands |
| 999 | 968 General history of Africa; Southern Africa |
| 1000 | 969 General history of Africa; South Indian Ocean islands |
| 1001 | 970 General history of North America |
| 1002 | 971 General history of North America; Canada |
| 1003 | 972 General history of North America; Middle America; Mexico |
| 1004 | 973 General history of North America; United States |
| 1005 | 974 General history of North America; Northeastern United States |
| 1006 | 975 General history of North America; Southeastern United States |
| 1007 | 976 General history of North America; South central United States |
| 1008 | 977 General history of North America; North central United States |
| 1009 | 978 General history of North America; Western United States |
| 1010 | 979 General history of North America; Great Basin & Pacific Slope |
| 1011 | 980 General history of South America |
| 1012 | 981 General history of South America; Brazil |
| 1013 | 982 General history of South America; Argentina |
| 1014 | 983 General history of South America; Chile |
| 1015 | 984 General history of South America; Bolivia |
| 1016 | 985 General history of South America; Peru |
| 1017 | 986 General history of South America; Colombia & Ecuador |
| 1018 | 987 General history of South America; Venezuela |
| 1019 | 988 General history of South America; Guiana |
| 1020 | 989 General history of South America; Paraguay & Uruguay |
| 1021 | 990 General history of other areas |
| 1022 | 991 Not assigned or no longer used |
| 1023 | 992 Not assigned or no longer used |
| 1024 | 993 General history of other areas; New Zealand |
| 1025 | 994 General history of other areas; Australia |
| 1026 | 995 General history of other areas; Melanesia; New Guinea |
| 1027 | 996 General history of other areas; Other parts of Pacific Polynesia |
| 1028 | 997 General history of other areas; Atlantic Ocean islands |
| 1029 | 998 General history of other areas; Arctic islands & Antarctica |
| 1030 | 999 Extraterrestrial worlds |
| 1031 | |