Universal Decimal Classification System

0	Generalities
00	Prolegomena. Fundamentals of Knowledge and Culture
004	Computer science
005	Management
01	Bibliography
02	Librarianship
030	Encyclopaedias. General Reference Works
050	Serial Publications. Periodicals
06	Organizations and Associations
069	Museums
070	Newspapers. Journalism
08	Polygraphies. Collective Works
09	Manuscripts. Rare and Remarkable Works
1	Philosophy. Psychology
101	Nature and role of Philosophy
11	Metaphysics
13	Philosophy of mind and spirit
14	Philosophical systems
159.9	Psychology
16	Logic. Epistemology. Theory of Knowledge
17	Moral Philosophy. Ethics
2	Religion. Theology
21	Prehistoric and Primitive Religions
22	Religions of The Far East
23	Religions of The Indian Subcontinent. Hinduism. Jainism. Sikhism
24	Buddhism
25	Religions of Antiquity. Minor Cults and Religions
252	Religions of Mesopotamia
254	Religions of Iran
257	Religions of Europe
26	Judaism
27	Christianity
271	Eastern church
272/279	Western Church
272	Roman Catholic church
274/278	Protestant churches
28	Islam
282	Sunnite Islam
284	Shi'ite Islam
285	Babi-Baha'i
29	Modern Spiritual Movements
3	Social Sciences
304	Social questions. Social practice.
308	Sociography. Descriptive studies of society
311	Statistics
314	Demography
316	Sociology
32	Politics
321	Forms of political organization. States as political power
323	Home affairs. Internal policy
324	Elections. Plebiscites. Referendums
327	International relations
328	Parliaments. Congresses. Representation of The people. Governments
329	Political parties and Movements
33	Economics
331	Labour. Employment. Work. Labour Economics. Organization of labour.
336	Finance
338	Economic policy. Management of The economy. Production. Services. Prices
339	Trade. Commerce. International economic relations. World economy
34	Law. Jurisprudence
341	International law
342	Public law. Constitutional law. Administrative law
343	Criminal law
343.9	Criminology
347	Civil law
35	Public Administration. Government
352/354	Levels of administration. Local, regional, central administration
355/359	Military Science
36	Safeguarding The Mental and Material Necessities of Life
364	Social Welfare
368	Insurance. Communal provision through sharing of risk
37	Education
371	Organization of educational and training system. School organization
374	Education and training out of school. Further education
378	Higher education. Universities. Academic study
379.8	Leisure
39	Ethnology. Folklore
391	Costume
392	Customs, manners, usage in private life
393	Death. Treatment of corpses. Funerals. Death rites
394	Public life. Social life. Life of The people
395	Social ceremonial. Etiquette. Good manners
398	Folklore in The strict sense.
396	Feminism
5	Mathematics and Natural Sciences
502/504	Environmental Sciences. Conservation of natural resources. Threats to The environment and protection
51	Mathematics
52	Astronomy
528	Geodesy, cartography
529	Chronology
53	Physics
54	Chemistry
548	Crystallography
549	Mineralogy
55	Earth Sciences
551.5	Meteorology. Climatology
551.7	Stratigraphy
552	Petrology
553	Economic geology
556	Hydrology
56	Palaeontology
57	Biological Sciences
572	Anthropology
573	General biology
574	Ecology
575	Genetics
576	Cytology
577	Biochemistry. Biophysics
578	Virology
579	Microbiology
58	Botany
59	Zoology
6	Applied Sciences. Medicine. Technology
61	Medicine
619	Veterinary medicine
62	Engineering. Technology in General
621	Mechanical engineering
621.3	Electrical engineering
621.38	Electronics
622	Mining
623	Military engineering
624	Civil engineering
625.1/.5	Railway engineering
625.7/.8	Highway engineering
626/627	Hydraulic engineering
628	Public health engineering
629	Vehicle engineering
63	Agricultural Sciences
630	Forestry
631/634	Farm management. Plant husbandry
635	Horticulture
636/638	Animal husbandry
639	Hunting. Fishing
64	Home Economics
641/642	Cookery
643/649	Household equipment and management
65	Management
651	Office management
654	Telecommunications
655	Printing. Publishing. Book Trade
656	Transport and Postal Services
657	Accountancy
659	Publicity. Advertising. Public relations
66	Chemical Technology
669	Metallurgy
67/68	Industries, Crafts and Trades
69	Building
7	The Arts
71	Regional Planning
72	Architecture
73	Plastic Arts
74	Drawing
745/749	Applied Arts
75	Painting
76	Graphic Arts
77	Photography
78	Music
79	Recreation. Entertainment. Games. Sport
791	Cinema. Films (Motion Pictures)
792	Theatre
793	Dance
794	Board and table games
796/799	Sport
8	Language. Linguistics. Literature
80	Philology
81	Linguistics
811	Individual languages
82	Literature
821	Literature of individual languages
9	Geography. Biography. History
902	Archaeology
903	Prehistory
904	Cultural remains of historical times
908	Area Studies
91	Geography
929	Biography
929.5	Genealogy
929.6	Heraldry
93/99	History
930	Science of history. Ancillary historical Sciences
930.1	History as a science. Theory and Philosophy of history
930.25	Archivistics. Archives. Public records
930.27	Epigraphy. Palaeography
94	General History (Subdivision by auxiliaries of place - Table 1e, time - Table 1g and ethnic grouping - Table 1f)
94(100)	History of The world
94(3)	History of The ancient world
94(4)	History of Europe
94(5)	History of Asia
94(6)	History of Africa
94(7/8)	History of The Americas
94(9)	History of Oceania, The Polar regions, Australasia, etc.