Library of Congress Classification System
Library of Congress Classification System
The Library of Congress Classification System is used to organize books and materials in libraries according to 21 branches of knowledge. The 21 categories (labeled A-Z except I, O, W, X, and Y) are further divided by adding one or two additional letters and a set of numbers. This system is in use at the Library of Congress and at many academic and research libraries in the United States, including the UST Libraries.
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A - General Works |
M - Music |
| AE - Encyclopedias AY - Yearbooks, Almanacs |
ML - Literature of Music MT - Musical Instruction and Study |
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B - Philosophy, Psychology, Religion |
N - Fine Arts |
| B-BD - Philosophy BF - Psychology BH - Esthetics BJ - Ethics BL - Religions and Mythology BM - Judaism BP - Islam BQ - Buddhism BR - Christianity BS - The Bible BX - Christian Denominations BX 800 - Roman Catholic Church |
NA - Architecture NB - Sculpture NC - Drawing, Design ND - Painting NK - Decorative Arts |
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C - History (Auxiliary Sciences: Archaeology, Genealogy, etc.) |
P - Language and Literature |
| CC - Archaeology CS - Genealogy CT - Biography (General) |
PA - Classical Languages and Literature PB - Modern European Languages (Gen.) PC1201-3029 - Celtic Languages and Lit. PC - Romance Languages PD - Germanic Languages PD1501-5929 - Scandinavian Languages PE - English Language PE1625 - English Dictionaries PF - West Germanic Languages PG - Slavic Languages and Literature PJ - Oriental Languages and Literature PL - East Asia, Africa, and Oceania Langs. and Literature PM - Hyperborean, Indian, and Artificial Languages PM101-7356 - Native American Langs. PN - Literature PN80-99 - Literary Criticism PN441-1009.5 - Literary History PN1010-1551 - Poetry PN1600-3307 - Drama PN1992.8-1992.95 - Television PN1993-1999 - Film PN2000-3307 - Theater PN4699-5650 - Journalism PN6080-6095 - Quotations PQ - Romance Literatures PR - English Literature PS - American Literature PT - Germanic Literature |
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D - History (except America) |
Q - Science |
| DA - Great Britain DC - France DD - Germany DK - Russia DS - Asia DT - Africa |
QA - Mathematics QA75.5-76.95 - Computer Science QB - Astronomy QC - Physics QD - Chemistry QE - Geology QH - Natural History/Biology QH301-705 - Biology QK - Botany QL - Zoology QM - Human Anatomy QR - Microbiology |
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E-F - History: America and United States |
R - Medicine |
| E51-99 - Native Americans E101-135 - Discovery of America E151 - United States (General) E184 - Hispanic Americans E184.06 - Asian Americans E184.5-185.98 - African Americans F1-F970 - United States F1001-1140 - Canada F1201-1392 - Mexico F1401-1419 - Latin America F1421-1577 - Central America F2201-3899 - South America (including individual countries) |
RA - Public Aspects of Medicine RC - Practice of Medicine RK - Dentistry RS - Pharmacy RT - Nursing RX - Homeopathy |
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G - Geography, Anthropology, Recreation |
S - Agriculture |
| G1001-3035- Atlases GB - Physical Geography GN - Anthropology, Ethnography GR - Folklore GV - Recreation, Sports |
SB - Plant Culture/Horticulture SD - Forestry SF - Animal Culture |
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H - Social Sciences |
T - Technology & Engineering |
| HA - Statistics HB - Economics HC - Economic History/Condition by Region or Country HD - Economic History/Conditions HD62.5 - Business Plans HD2346 - Small Business HE - Transportation/Communication HF - Commerce HF1746 - NAFTA HF3000 - Import/Export HF5381 - Careers HF5415 - Marketing HF5549 - Human Relations HF5500-5600 - Financial Ratios HF5601-5689 - Accounting HF5801-6182 - Advertising HG - Finance HG1501-3550 - Banking HG4057 - Company Directories HG4501-6051 - Stocks, Investments HJ - Public Finance HM - Sociology HN - Social History, Problems, Reform HQ - Family, Marriage, Women HS - Societies: Secret, Benevolent, Clubs HT - Communities, Classes, Races HV - Social Pathology, Social Work, Criminology HV40-696 - Social Service HV5001-5720.5 - Alcoholism HV5800-5840 - Drug Abuse HV6001-7220.5 - Criminology HX - Communism, Socialism, Anarchism |
TA - Engineering (General), Civil Eng. TD - Environmental TJ - Mechanical Engineering TK - Electrical Engineering TL - Aeronautics and Space TP - Chemical Technology TR - Photography |
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J - Political Science |
U - Military Science |
| JC - Political Theory, Politics JF - Constitutions JK - United States JN - Europe JS - Local Government JX - International Law |
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K - Law |
V - Naval Science |
| KF - United States Law KFM - Minnesota Law |
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L - Education |
Z - Bibliography and Library Science |
| LA - History of Education LB - Theory/Practice of Education |
