Library of Congress Classification: Wikis

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The Library of Congress Classification (LCC) is a system of library classification developed by the Library of Congress. It is used by most research and academic libraries in the U.S. and several other countries. It is not to be confused with the Library of Congress Subject Headings or Library of Congress Control Number. Most public libraries and small academic libraries continue to use the Dewey Decimal Classification (DDC).

The classification was originally developed by Herbert Putnam in 1897, just before he assumed the librarianship of Congress. With advice from Charles Ammi Cutter, it was influenced by Cutter Expansive Classification, and the DDC, and was specially designed for the special purposes of the Library of Congress. The new system replaced a fixed location system developed by Thomas Jefferson. By the time of Putnam's departure from his post in 1939, all the classes except K (Law) and parts of B (Philosophy and Religion) were well developed. It has been criticized as lacking a sound theoretical basis; many of the classification decisions were driven by the particular practical needs of that library, rather than epistemological considerations.

Although it divides subjects into broad categories, it is essentially enumerative in nature. It provides a guide to the books actually in the library, not a classification of the world.

The National Library of Medicine classification system (NLM) uses the classification scheme's unused letters W and QSQZ. Some libraries use NLM in conjunction with LCC, eschewing LCC's R (Medicine). Others prefer to use the LCC scheme's QP-QR schedules and include Medicine R.

Contents

The system

Java programming books in the QA subclass.
Letter Subject area
A General Works
B Philosophy, Psychology, and Religion
C Auxiliary Sciences of History
D General and Old World History
E History of America
F History of the United States and British, Dutch, French, and Latin America
G Geography, Anthropology, and Recreation
H Social Sciences
J Political Science
K Law
L Education
M Music
N Fine Arts
P Language and Literature
Q Science
R Medicine
S Agriculture
T Technology
U Military Science
V Naval Science
Z Bibliography, Library Science, and General Information Resources
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Class A - General Works

  • Subclass AC - Collections. Series. Collected works
  • Subclass AE - Encyclopedias
  • Subclass AG - Dictionaries and other general reference works
  • Subclass AI - Indexes
  • Subclass AM - Museums. Collectors and collecting
  • Subclass AN - Newspapers
  • Subclass AP - Periodicals
  • Subclass AS - Academies and learned societies
  • Subclass AY - Yearbooks. Almanacs. Directories
  • Subclass AZ - History of scholarship and learning. The humanities

Class B - Philosophy, Psychology, Religion

  • Subclass B - Philosophy (General)
  • Subclass BC - Logic
  • Subclass BD - Speculative philosophy
  • Subclass BF - Psychology
  • Subclass BH - Aesthetics
  • Subclass BJ - Ethics
  • Subclass BL - Religions. Mythology. Rationalism
  • Subclass BM - Judaism
  • Subclass BP - Islam. Bahaism. Theosophy, etc.
  • Subclass BQ - Buddhism
  • Subclass BR - Christianity
  • Subclass BS - The Bible
  • Subclass BT - Doctrinal Theology
  • Subclass BV - Practical Theology
  • Subclass BX - Christian Denominations

Class C - Auxiliary Sciences of History (General)

Class D - World History (except American History)

  • Subclass D - History (General)
  • Subclass DA - Great Britain
  • Subclass DAW - Central Europe
  • Subclass DB - Austria - Liechtenstein - Hungary - Czechoslovakia
  • Subclass DC - France - Andorra - Monaco
  • Subclass DD - Germany
  • Subclass DE - Greco-Roman World
  • Subclass DF - Greece
  • Subclass DG - Italy - Malta
  • Subclass DH - Low Countries - Benelux Countries
  • Subclass DJ - Netherlands (Holland)
  • Subclass DJK - Eastern Europe (General)
  • Subclass DK - Russia. Soviet Union. Former Soviet Republics - Poland
  • Subclass DL - Northern Europe. Scandinavia
  • Subclass DP - Spain - Portugal
  • Subclass DQ - Switzerland
  • Subclass DR - Balkan Peninsula
  • Subclass DS - Asia
  • Subclass DT - Africa
  • Subclass DU - Oceania (South Seas)
  • Subclass DX - Gypsies

Class E and F - American History

Class F - Local History of the United States and British, Dutch, French, and Latin America

Class G - Geography, Anthropology, Recreation

  • Subclass G - Geography (General). Atlases. Maps
  • Subclass GA - Mathematical geography. Cartography
  • Subclass GB - Physical geography
  • Subclass GC - Oceanography
  • Subclass GE - Environmental Sciences
  • Subclass GF - Human ecology. Anthropogeography
  • Subclass GN - Anthropology
  • Subclass GR - Folklore
  • Subclass GT - Manners and customs (General)
  • Subclass GV - Recreation. Leisure

Class H - Social Sciences

  • Subclass H - Social sciences (General)
  • Subclass HA - Statistics
  • Subclass HB - Economic theory. Demography
  • Subclass HC - Economic history and conditions
  • Subclass HD - Industries. Land use. Labor
  • Subclass HE - Transportation and communications
  • Subclass HF - Commerce
  • Subclass HG - Finance
  • Subclass HJ - Public finance
  • Subclass HM - Sociology (General)
  • Subclass HN - Social history and conditions. Social problems. Social reform
  • Subclass HQ - The family. Marriage. Women
  • Subclass HS - Societies: secret, benevolent, etc.
  • Subclass HT - Communities. Classes. Races
  • Subclass HV - Social pathology. Social and public welfare. Criminology
  • Subclass HX - Socialism. Communism. Anarchism

Class J - Political Science

  • Subclass J - General legislative and executive papers
  • Subclass JA - Political science (General)
  • Subclass JC - Political theory
  • Subclass JF - Political institutions and public administration
  • Subclass JJ - Political institutions and public administration (North America)
  • Subclass JK - Political institutions and public administration (United States)
  • Subclass JL - Political institutions and public administration (Canada, Latin America, etc.)
  • Subclass JN - Political institutions and public administration (Europe)
  • Subclass JQ - Political institutions and public administration (Asia, Africa, Australia, Pacific Area, etc.)
  • Subclass JS - Local government. Municipal government
  • Subclass JV - Colonies and colonization. Emigration and immigration. International migration
  • Subclass JX - International law, see JZ and KZ (obsolete)
  • Subclass JZ - International relations

Class K - Law

  • Subclass K - Law in general. Comparative and uniform law. Jurisprudence
  • Subclass KB - Religious law in general. Comparative religious law. Jurisprudence
  • Subclass KBM - Jewish law
  • Subclass KBP - Islamic law
  • Subclass KBR - History of canon law
  • Subclass KBU - Law of the Roman Catholic Church. The Holy See
  • Subclasses - KD-KDK United Kingdom and Ireland
  • Subclass KDZ - America. North America
  • Subclass KE - Canada
  • Subclass KF - United States
  • Subclass KG - Latin America - Mexico and Central America - West Indies. Caribbean area
  • Subclass KH - South America
  • Subclasses KJ-KKZ - Europe
  • Subclasses KL-KWX - Asia and Eurasia, Africa, Pacific Area, and Antarctica
  • Subclass KZ - Law of nations

Class L - Education

  • Subclass L - Education (General)
  • Subclass LA - History of education
  • Subclass LB - Theory and practice of education
  • Subclass LC - Special aspects of education
  • Subclass LD - Individual institutions - United States
  • Subclass LE - Individual institutions - America (except United States)
  • Subclass LF - Individual institutions - Europe
  • Subclass LG - Individual institutions - Asia, Africa, Indian Ocean islands, Australia, New Zealand, Pacific islands
  • Subclass LH - College and school magazines and papers
  • Subclass LJ - Student fraternities and societies, United States
  • Subclass LT - Textbooks

Class M - Music

  • Subclass M - Music
  • Subclass ML - Literature on music
  • Subclass MT - Instruction and study

Class N - Fine arts

Class P - Language and Literature

  • Subclass P - Philology. Linguistics
  • Subclass PA - Greek language and literature. Latin language and literature
  • Subclass PB - Modern languages. Celtic languages
  • Subclass PC - Romanic languages
  • Subclass PD - Germanic languages. Scandinavian languages
  • Subclass PE - English language
  • Subclass PF - West Germanic languages
  • Subclass PG - Slavic languages and literatures. Baltic languages. Albanian language
  • Subclass PH - Uralic languages. Basque language
  • Subclass PJ - Oriental languages and literatures
  • Subclass PK - Indo-Iranian languages and literatures
  • Subclass PL - Languages and literatures of Eastern Asia, Africa, Oceania
  • Subclass PM - Hyperborean, Indian, and artificial languages
  • Subclass PN - Literature (General)
  • Subclass PQ - French literature - Italian literature - Spanish literature - Portuguese literature
  • Subclass PR - English literature
  • Subclass PS - American literature
  • Subclass PT - German literature - Dutch literature - Flemish literature since 1830 -Afrikaans literature - Scandinavian literature - Old Norse literature: Old Icelandic and Old Norwegian - Modern Icelandic literature - Faroese literature - Danish literature - Norwegian literature - Swedish literature
  • Subclass PZ - Fiction and juvenile belles lettres

Class Q - Science

Class R - Medicine

  • Subclass R - Medicine (General)
  • Subclass RA - Public aspects of medicine
  • Subclass RB - Pathology
  • Subclass RC - Internal medicine
  • Subclass RD - Surgery
  • Subclass RE - Ophthalmology
  • Subclass RF - Otorhinolaryngology
  • Subclass RG - Gynecology and obstetrics
  • Subclass RJ - Pediatrics
  • Subclass RK - Dentistry
  • Subclass RL - Dermatology
  • Subclass RM - Therapeutics. Pharmacology
  • Subclass RS - Pharmacy and materia medica
  • Subclass RT - Nursing
  • Subclass RV - Botanic, Thomsonian, and eclectic medicine
  • Subclass RX - Homeopathy
  • Subclass RZ - Other systems of medicine

Class S - Agriculture

  • Subclass S - Agriculture (General)
  • Subclass SB - Plant culture
  • Subclass SD - Forestry
  • Subclass SF - Animal culture
  • Subclass SH - Aquaculture. Fisheries. Angling
  • Subclass SK - Hunting sports

Class T - Technology

  • Subclass T - Technology (General)
  • Subclass TA - Engineering (General). Civil engineering
  • Subclass TC - Hydraulic engineering. Ocean engineering
  • Subclass TD - Environmental technology. Sanitary engineering
  • Subclass TE - Highway engineering. Roads and pavements
  • Subclass TF - Railroad engineering and operation
  • Subclass TG - Bridge engineering
  • Subclass TH - Building construction
  • Subclass TJ - Mechanical engineering and machinery
  • Subclass TK - Electrical engineering. Electronics. Nuclear engineering
  • Subclass TL - Motor vehicles. Aeronautics. Astronautics
  • Subclass TN - Mining engineering. Metallurgy
  • Subclass TP - Chemical technology
  • Subclass TR - Photography
  • Subclass TS - Manufactures
  • Subclass TT - Handicrafts. Arts and crafts
  • Subclass TX - Home economics

Class U - Military Science

  • Subclass U - Military science (General)
  • Subclass UA - Armies: Organization, distribution, military situation
  • Subclass UB - Military administration
  • Subclass UC - Maintenance and transportation
  • Subclass UD - Infantry
  • Subclass UE - Cavalry. Armor
  • Subclass UF - Artillery
  • Subclass UG - Military engineering. Air forces
  • Subclass UH - Other services

Class V - Naval Science

  • Subclass V - Naval science (General)
  • Subclass VA - Navies: Organization, distribution, naval situation
  • Subclass VB - Naval administration
  • Subclass VC - Naval maintenance
  • Subclass VD - Naval seamen
  • Subclass VE - Marines
  • Subclass VF - Naval ordnance
  • Subclass VG - Minor services of navies
  • Subclass VK - Navigation. Merchant marine
  • Subclass VM - Naval architecture. Shipbuilding. Marine engineering

Class Z - Bibliography, Library Science

  • Subclass Z - Books (General). Writing. Paleography. Book industries and trade. Libraries. Bibliography
  • Subclass ZA - Information resources (General)

See also

References

External links


Study guide

Up to date as of January 14, 2010

From Wikiversity

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Source material

Up to date as of January 22, 2010

From Wikisource

Library of Congress Classification
by Library of Congress
Wikipedia logo Wikipedia has more on:
Library of Congress Classification.
Letter Subject area
A General Works
B Philosophy, Psychology, and Religion
C Auxiliary Sciences of History
D General and Old World History
E History of America
F History of the United States and British, Dutch, French, and Latin America
G Geography, Anthropology, and Recreation
H Social Sciences
J Political Science
K Law
L Education
M Music
N Fine Arts
P Language and Literature
Q Science
R Medicine
S Agriculture
T Technology
U Military Science
V Naval Science
Z Bibliography, Library Science, and General Information Resources

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