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