- 000 Computer Science, Information & General Works
- 100 Philosophy & Psychology
- 100 Philosophy
- 110 Metaphysics
- 140 Philosophical Schools of Thought
- 150 Psychology
- 160 Philosophical Logic
- 170 Ethics
- 170 Ethics (Moral Philosophy)
- 171 Ethical Systems
- 172 Political Ethics
- 173 Ethics of Family Relationships
- 174 Occupational Ethics
- 175 Ethics of Recreation, Leisure, Public Performances, Communication
- 176 Ethics of Sex & Reproduction
- 177 Ethics of Social Relations
- 178 Ethics of Consumption
- 179 Other Ethical Norms
- 180 Ancient, Medieval, & Eastern Philosophy
- 180 Ancient, Medieval, Eastern Philosophy
- 181 Eastern Philosophy
- 182 Pre-Socratic Greek Philosophies
- 183 Sophistic, Socratic, Related Greek Philosophies
- 184 Platonic Philosophy
- 185 Aristotelian Philosophy
- 186 Skeptic & Neoplatonic Philosophies
- 187 Epicurean Philosophy
- 188 Stoic Philosophy
- 189 Medieval Western Philosophy
- 200 Religion
- 300 Social Sciences
- 300 Social Sciences, Sociology & Anthropology
- 320 Political Science
- 330 Economics
- 340 Law
- 340 Law
- 341 Law of Nations
- 342 Constitutional & Administrative Law
- 343 Military, Defense, Public Property, Public Finance, Tax, Commerce (Trade), Industrial Law
- 344 Labor, Social Service, Education, Cultural Law
- 345 Criminal Law
- 347 Procedure & Courts
- 348 Laws, Regulations, Cases
- 349 Law of Specific Jurisdictions, Areas, Socioeconomic Regions, Regional Intergovernmental Organizations
- 350 Public Administration & Military Science
- 360 Social Problems & Social Services
- 370 Education
- 380 Commerce, Communications, & Transportation
- 380 Commerce, Communications, Transportation
- 381 Commerce (Trade)
- 382 International Commerce (Foreign Trade)
- 383 Postal Communication
- 384 Communications
- 385 Railroad Transportation
- 386 Inland Waterway & Ferry Transportation
- 387 Water, Air, Space Transportation
- 388 Transportation
- 389 Metrology & Standardization
- 400 Language
- 400 Language
- 410 Linguistics
- 410 Linguistics
- 411 Writing Systems of Standard Forms of Languages
- 412 Etymology of Standard Forms of Languages
- 413 Dictionaries of Standard Forms of Languages
- 414 Phonology & Phonetics of Standard Forms of Languages
- 415 Grammar of Standard Forms of Languages
- 417 Dialectology & Historical Linguistics
- 418 Standard Usage (Prescriptive Linguistics)
- 419 Sign Languages
- 420 English & Old English Languages
- 420 English & Old English (Anglo-Saxon)
- 421 Writing System, Phonology, Phonetics of Standard English
- 422 Etymology of Standard English
- 423 Dictionaries of Standard English
- 425 Grammar of Standard English
- 427 Historical & Geographical Variations, Modern Nongeographic Variations of English
- 428 Standard English Usage (Prescriptive Linguistics)
- 429 Old English (Anglo-Saxon)
- 500 Science
- 500 Science
- 510 Mathematics
- 520 Astronomy
- 530 Physics
- 540 Chemistry
- 550 Earth Sciences & Geology
- 560 Fossils & Prehistoric Life
- 570 Biology
- 570 Biology
- 571 Physiology & Related Subjects
- 572 Biochemistry
- 573 Specific Physiological Systems in Animals, Regional Histology & Physiology in Animals
- 575 Specific Parts of & Physiological Systems in Plants
- 576 Genetics and Evolution
- 577 Ecology
- 578 Natural History of Organisms & Related Subjects
- 579 Natural History of Microorganisms, Fungi, Algae
- 580 Plants
- 590 Animals (Zoology)
- 600 Technology
- 600 Technology
- 610 Medicine & Health
- 610 Medicine & Health
- 611 Human Anatomy, Cytology, Histology
- 612 Human Physiology
- 613 Personal Health & Safety
- 614 Forensic Medicine; Incidence of Injuries, Wounds, Disease; Public Preventive Medicine
- 615 Pharmacology and Therapeutics
- 616 Diseases
- 617 Surgery, Regional Medicine, Dentistry, Ophthalmology, Otology, Audiology
- 618 Gynecology, Obstetrics, Pediatrics, Geriatrics
- 620 Engineering
- 630 Agriculture
- 630 Agriculture & Related Technologies
- 631 Specific Techniques; Apparatus, Equipment, Materials
- 632 Plant injuries, Diseases, Pests
- 633 Field & Plantation Crops
- 634 Orchards, Fruits, Forestry
- 635 Garden crops (Horticulture)
- 636 Animal Husbandry
- 637 Processing Dairy & Related Products
- 638 Insect Culture
- 639 Hunting, Fishing, Conservation, Related Technologies
- 640 Home & Family Management
- 640 Home & Family Management
- 641 Food & Drink
- 642 Meals & Table Service
- 643 Housing & Household Equipment
- 644 Household Utilities
- 645 Household Furnishings
- 646 Sewing, Clothing, Management of Personal and Family Life
- 647 Management of Public Households (Institutional Housekeeping)
- 648 Housekeeping
- 649 Child Rearing; Home Care of People with Disabilities & Illnesses
- 650 Management & Public Relations
- 660 Chemical Engineering
- 660 Chemical Engineering & Related Technologies
- 661 Technology of Industrial Chemicals
- 662 Technology of Explosives, Fuels, Related Products
- 663 Beverage Technology
- 664 Food Technology
- 665 Technology of Industrial Oils, Fats, Waxes, Gases
- 666 Ceramic & Allied Technologies
- 667 Cleaning, Color, Coating, Related Technologies
- 668 Technology of Other Organic Products
- 669 Metallurgy
- 670 Manufacturing
- 670 Manufacturing
- 671 Metalworking Processes & Primary Metal Products
- 672 Iron, Steel, Other Iron Alloys
- 673 Nonferrous Metals
- 674 Lumber Processing, Wood Products, Cork
- 675 Leather & Fur Processing
- 676 Pulp & Paper Technology
- 677 Textiles
- 678 Elastomers & Elastomer Products
- 679 Other Products of Specific Kinds of Materials
- 680 Manufacture for Specific Uses
- 680 Manufacture of Products for Specific Uses
- 681 Precision Instruments & Other Devices
- 682 Small Forge Work (Blacksmithing)
- 683 Hardware & Household Appliances
- 684 Furnishings & Home Workshops
- 685 Leather & Fur Goods, & Related Products
- 686 Printing & Related Activities
- 687 Clothing & Accessories
- 688 Other Final Products, & Packaging Technology
- 690 Construction of Buildings
- 700 Arts & Recreation
- 700 Arts
- 700 The Arts
- 701 Philosophy & Theory of Fine & Decorative Arts
- 702 Miscellany of Fine & Decorative Arts
- 703 Dictionaries, Encyclopedias, Concordances of Fine & Decorative Arts
- 704 Special Topics in Fine & Decorative Arts
- 705 Serial Publications of Fine & Decorative Arts
- 706 Organizations & Management of Fine & Decorative Arts
- 707 Education, Research, Related Topics of Fine & Decorative Arts
- 708 Galleries, Museums, Private Collections of Fine & Decorative Arts
- 709 History, Geographic Treatment, Biography
- 710 Area Planning & Landscape Architecture
- 710 Area Planning & Landscape Architecture
- 711 Area Planning (Civic Art)
- 712 Landscape Architecture (Landscape Design)
- 713 Landscape Architecture of Trafficways
- 714 Water Features in Landscape Architecture
- 715 Woody Plants in Landscape Architecture
- 716 Herbaceous Plants in Landscape Architecture
- 717 Structures in Landscape Architecture
- 718 Landscape Design of Cemeteries
- 719 Natural Landscapes
- 720 Architecture
- 720 Architecture
- 721 Architectural Materials & Structural Elements
- 722 Architecture from Earliest Times to ca. 300
- 723 Architecture from ca. 300 to 1399
- 724 Architecture from 1400
- 725 Public Structures
- 726 Buildings for Religious & Related Purposes
- 727 Buildings for Educational & Research Purposes
- 728 Residential & Related Buildings
- 729 Design & Decoration of Structures & Accessories
- 730 Sculpture, Ceramics, & Metalwork
- 730 Sculpture & Related Arts
- 731 Processes, Forms, Subjects of Sculpture
- 732 Sculpture from Earliest Times to ca. 500, Sculpture of Nonliterate Peoples
- 733 Greek, Etruscan, Roman Sculpture
- 734 Sculpture from ca. 500 to 1399
- 735 Sculpture from 1400
- 736 Carving & Carvings
- 737 Numismatics & Sigillography
- 738 Ceramic Arts
- 739 Art Metalwork
- 740 Graphic Arts & Decorative Arts
- 750 Painting
- 750 Painting & Paintings
- 751 Techniques, Procedures, Apparatus, Equipment, Materials, Forms
- 752 Color
- 753 Symbolism, Allegory, Mythology, Legend
- 754 Genre Paintings
- 755 Religion
- 757 Human Figures
- 758 Nature, Architectural Subjects & Cityscapes, Other Specific Subjects
- 759 History, Geographic Treatment, Biography
- 760 Printmaking & Prints
- 770 Photography, Computer Art, Film, Video
- 770 Photography, Computer Art, Cinematography, Videography
- 771 Techniques, Procedures, Apparatus, Equipment, Materials
- 772 Metallic Salt Processes
- 773 Pigment Processes of Printing
- 776 Computer Art (Digital Art)
- 777 Cinematography & Videography
- 778 Specific Fields & Special Kinds of Photography
- 779 Photographic images
- 780 Music
- 780 Music
- 781 General Principles & Musical Forms
- 782 Vocal Music
- 783 Music for Single Voices
- 784 Instruments & Instrumental Ensembles & Their Music
- 785 Ensembles with Only One Instrument per Part
- 786 Keyboard, Mechanical, Electrophonic, Percussion Instruments
- 787 Stringed Instruments (Chordophones)
- 788 Wind Instruments (Aerophones)
- 790 Sports, Games & Entertainment
- 700 Arts
- 800 Literature
- 800 Literature, Rhetoric & Criticism
- 800 Literature (Belles-Lettres) & Rhetoric
- 801 Philosophy & Theory
- 803 Dictionaries, Encyclopedias, Concordances
- 805 Serial Publications
- 806 Organizations & Management
- 807 Education, Research, Related Topics
- 808 Rhetoric & Collections of Literary Texts from More than Two Literatures
- 809 History, Description, Critical Appraisal of More than Two Literatures
- 800 Literature, Rhetoric & Criticism
- 900 History & Geography
- 900 History
- 900 History, Geography, & Auxiliary Disciplines
- 901 Philosophy & Theory of History
- 903 Dictionaries, Encyclopedias, Concordances of History
- 904 Collected Accounts of Events
- 905 Serial Publications of History
- 906 Organizations & Management of History
- 907 Education, Research, Related Topics of History
- 908 History with Respect to Groups of People
- 909 World History
- 910 Geography & Travel
- 900 History
