000 – Computer science, information
& general works (includes
encyclopedias and almanacs)
- 005 Computer programming, programs
100 – Philosophy and Psychology
200 – Religion
300 – Social Sciences
- 320 Political Science
- 330 Economics
- 340 Law
- 350 Public Administration
- 360 Social Services
- 370 Education
- 380 Commerce
- 390 Customs, Etiquette, Folklore
400 – Language
(including dictionaries)
500 – Natural Sciences
600 – Applied Sciences and Technology
- 610 Medicine
- 635 Gardening
- 640 Home Economics
- 641 Cooking
700 – Arts and Recreation
800 – Literature
900 – History, Geography, and Biography
- 910 Geography and Travel
- 920 Biography
- 930 Ancient History
- 940 European History
- 950 Asian History
- 960 African History
- 970 North American History
- 973 United States History
- 980 South American History