000 Computers, Information, and General Works

• 010 Bibliographies
• 020 Library & Information Science
• 030 Encyclopedias & Books of Facts
• 040 Special Topics [unassigned]
• 050 Magazines, Journals, Serials, and their Indices
• 060 Associations, Organizations, & Museums
• 070 New Media, Journalism, Publishing
• 080 General Collections
• 090 Manuscripts & Rare Books

100 Philosophy & Psychology

• 110 Metaphysics
• 120 Epistemology, Causation, Humankind
• 130 Parapsychology & Occultism
• 140 Specific Philosophical Schools
• 150 Psychology
• 160 Logic
• 170 Ethics
• 180 Ancient, Medieval, and Eastern Philosophy
• 190 Modern Western Philosophy

200 Religion

• 210 Philosophy & Theory of Religion
• 220 The Bible
• 230 Christianity & Christian Theology
• 240 Christian Practice & Observance
• 250 Christian Pastoral Practice and Religious Orders
• 260 Christian Organization, Social Work, & Worship
• 270 History of Christianity
• 280 Christian Denominations & Sects
• 290 Other Religions & Comparative Religion

300 Social Sciences, Sociology, and Anthropology

• 310 General Statistics
• 320 Political Science
• 330 Economics
• 340 Law
• 350 Public Administration & Military Science
• 360 Social Problems & Social Services
• 370 Education
• 380 Commerce, Communications, & Transportation
• 390 Customs, Etiquette, & Folklore

400 Language

• 410 Linguistics
• 420 English & Old English Languages
• 430 German & Related Languages
• 440 French & Related Languages
• 450 Italian, Romanian, & Related Languages
•  460 Spanish & Portuguese Languages
• 470 Latin & Italic Languages
• 480 Classical & Modern Greek Languages
• 490 Other Languages

500 Natural Science & Mathematics

• 510 Mathematics
• 520 Astronomy & Allied Sciences
• 530 Physics
• 540 Chemistry & Allied Sciences
• 550 Earth Sciences & Geology
• 560 Paleontology & Paleozoology
• 570 Life Sciences & Biology
• 580 Botany (Plant Sciences)
• 590 Zoological Sciences

600 Technology

• 610 Medicine & Health
• 620 Engineering
• 630 Agriculture
• 640 Home and Family Management
• 650 Management & Public Relations
• 660 Chemical Engineering
• 670 Manufacturing
• 680 Manufacture for Specific Use
• 690 Building & Construction

700 The Arts

• 710 Landscaping & Area Planning
• 720 Architecture
• 730 Sculpture, Ceramics, & Metalwork
• 740 Drawing & Decorative Arts
• 750 Paintings & Painters
• 760 Graphic Arts (e.g. Printmaking & Prints)
• 770 Photography
• 780 Music
• 790 Recreational and Performing Arts

800 Literature, Rhetoric, & Criticism

• 810 American Literature in English
• 820 English & Old English Literatures
• 830 German & Related Literatures
• 840 French & Related Literatures
• 850 Italian, Romanian, & Related Literatures
• 860 Spanish & Portuguese Literatures
• 870 Latin & Italic Literatures
• 880 Classical & Modern Greek Literatures
• 890 Literatures of Other Languages

900 Geography & History

• 910 Geography & Travel
• 920 Biography, Genealogy, & Insignia
• 930 History of the Ancient World (to c. 499)
• 940 History of Europe
• 950 History of Asia
• 960 History of Africa
• 970 History of North American
• 980 History of South America
• 990 History of Other Areas