0	GENERAL WORKS. BOOKS AND PUBLISHING. LIBRARIES. GENERAL CULTURAL POLICY. MASS COMMUNICATION
00	BOOKS AND PUBLISHING
00.1	Writing
00.109	History of writing. Palaeography. Epigraphy
00.2	Symbols. Codes. Sign systems
00.4	Art of printing. Printing industry
00.5	Bookbinding
00.6	Publishing. Book trade
00.8	Book collecting. Bibliophilism
01	BIBLIOGRAPHY
01.2	General bibliographies. National bibliographies
01.21	Publishers' and retailers' catalogues
01.22	Thesis and dissertation catalogues
01.3	Local bibliographies
01.4	Personal bibliographies
01.5	Catalogues of special subjects
01.51	Philosophy. Psychology. Paranormal phenomena
01.52	Religion
01.53	Society
01.54	Geography. Travel. Ethnology
01.55	Natural sciences. Mathematics. Medicine
01.56	Technology. Industry. Handicrafts. Agriculture and forestry. Domestic science. Business economy. Traffic
01.57	Arts. Athletics
01.58	Belles-lettres. Literary studies. Linguistics
01.59	History
01.7	Joint library catalogues
01.8	Individual library catalogues
02	LIBRARIES. LIBRARY SCIENCE. INFORMATICS
02.1	Library administration and planning.
02.3	Library management. Library techniques
02.31	Library automation
02.32	Library media. Care of collections
02.321	Content description
02.323	Cataloguing
02.33	Lending
02.36	Information service. Information retrieval
02.38	Extended library services
02.4	Music libraries
02.6	Children's libraries. Young people's libraries
02.64	School libraries
02.7	Library services for special population groups
02.8	Individual libraries
03	INFORMATION RETRIEVAL. GENERAL REFERENCE WORKS
04	GENERAL COMPILATIONS
05	GENERAL PERIODICALS
05.1	Periodicals
05.2	Serial publications
05.3	Yearbooks. Calendars. Almanacs
05.4	Newspapers
06	GENERAL CULTURAL POLICY
06.1	Associations. Foundations. Societies. Clubs
06.2	Museums
06.3	Exhibitions
06.4	Archives
06.5	Meetings. Cultural events
06.6	Scholarships
06.8	Cultural work for children and young people
07	COMMUNICATION. MASS COMMUNICATION
07.01	Communications theory
07.1	Journalism
07.2	Radio and television
07.21	Radio
07.22	Television