Library of Congress Classification

Classification

Class A – General Works

• – Collections. Series. Collected works
• – Encyclopedias
• – 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
• 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 –

  Class C – Auxiliary Sciences of History

• Subclass C – Auxiliary Sciences of History
• Subclass CB – History of Civilization
• Subclass CC – Archaeology
• Subclass CD – Diplomatics. Archives. Seals
• Subclass CE – Technical Chronology. Calendar
• Subclass CJ – Numismatics
• Subclass CN – Inscriptions. Epigraphy
• Subclass CR – Heraldry
• Subclass CS – Genealogy
• Subclass CT – Biography

  Class D – World History and History of Europe, Asia, Africa, Australia, New Zealand, etc.

• Subclass D – History
• 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
• Subclass DJK – Eastern Europe
• 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
• Subclass DX – Romanies

  Class E – History of America

• Class E does not have any subclasses.

  Class F – Local History of the Americas

• Class F does not have any subclasses, however Canadian Universities and the Canadian National Library use FC for Canadian History, a subclass that the LC has not officially adopted, but which it has agreed not to use for anything else

  Class G – Geography, Anthropology, Recreation

• Subclass – Geography. Atlases. Maps
• Subclass – Mathematical geography. Cartography
• Subclass – Physical geography
• Subclass – Oceanography
• Subclass GE – Environmental Sciences
• Subclass GF – Human ecology. Anthropogeography
• Subclass – Anthropology
• Subclass – Folklore
• Subclass – Manners and customs
• Subclass – Recreation. Leisure

  Class H – Social Sciences

• Subclass H – Social sciences
• Subclass HA – Statistics
• – Economic theory. Demography
• Subclass HC – Economic history and conditions
• – Industries. Land use. Labor
• – Transportation and communications
• – Commerce
• – Finance
• – Public finance
• – Sociology
• Subclass HN – Social history and conditions. Social problems. Social reform
• – The family. Marriage, Women and Sexuality
• – Societies: secret, benevolent, etc.
• – Communities. Classes. Races
• – 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
• Subclass JC – Political theory
• Subclass JF – Political institutions and public administration
• Subclass JJ – Political institutions and public administration
• Subclass JK – Political institutions and public administration
• Subclass JL – Political institutions and public administration
• Subclass JN – Political institutions and public administration
• Subclass JQ – Political institutions and public administration
• Subclass JS – Local government. Municipal government
• Subclass JV – Colonies and colonization. Emigration and immigration. International migration
• Subclass JX – International law, see JZ and KZ
• 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 KBS – Canon law of Eastern churches
• Subclass KBT – Canon law of Eastern Rite Churches in Communion with the Holy See of Rome
• 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 KU/KUQ – Law of Australia and New Zealand
• Subclass KZ – Law of nations

  Class L – Education

• Subclass L – Education
• 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
• 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

• Subclass N – Visual arts
• Subclass NA – Architecture
• Subclass NB – Sculpture
• Subclass NC – Drawing. Design. Illustration
• Subclass ND – Painting
• Subclass NE – Print media
• Subclass NK – Decorative arts
• Subclass NX – Arts in general

  Class P – Language and Literature

• – Philology. Linguistics
• – Greek language and literature. Latin language and literature
• – Modern languages. Celtic languages and literature
• – Romanic languages
• – Germanic languages. Scandinavian languages
• – English language
• – West Germanic languages
• – Slavic languages and literature. Baltic languages. Albanian language
• – Uralic languages. Basque language
• – Oriental languages and literatures
• – Indo-Iranian languages and literature
• – Languages and literature of Eastern Asia, Africa, Oceania
• – Hyperborean, Native American, and artificial languages
• – Literature
• – French literature – Italian literature – Spanish literature – Portuguese literature
• – English literature
• – American literature
• – 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
• – Fiction and juvenile belles lettres

  Class Q – Science

• Subclass Q – Science
• Subclass QA – Mathematics
• Subclass QB – Astronomy
• Subclass QC – Physics
• Subclass QD – Chemistry
• Subclass QE – Geology
• Subclass QH – Natural history – Biology
• Subclass QK – Botany
• Subclass QL – Zoology
• Subclass QM – Human anatomy
• Subclass QP – Physiology
• Subclass QR – Microbiology

  Class R – Medicine

• Subclass R – Medicine
• 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
• Subclass SB – Horticulture. Plant propagation. Plant breeding
• Subclass SD – Forestry. Arboriculture. Silviculture
• Subclass SF – Animal husbandry. Animal science
• Subclass SH – Aquaculture. Fisheries. Angling
• Subclass SK – Hunting

  Class T – Technology

• Subclass T – Technology
• Subclass TA – Engineering 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 – Bridges
• 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 – Manufacturing engineering. Mass production
• Subclass TT – Handicrafts. Arts and crafts
• Subclass TX – Home economics

  Class U – Military Science

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

  Class V – Naval Science

• Subclass V – Naval science
• 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