Library of Congress Cataloguing

Library of Congress Classification Outline

This list isn't something that has to be memorized in order to be able to shelve books correctly, but it will give a better idea as to how things are catalogued in the system.

These are most of the categories listed in the Library of Congress. There are many more items in each subclass listed on the Library of Congress website.

• 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
• 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
• 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
• D -- WORLD HISTORY AND HISTORY OF EUROPE, ASIA, AFRICA, AUSTRALIA, NEW ZEALAND, ETC.
  • Subclass D - History (General)
  • Subclass DA - History of Great Britain
  • Subclass DAW - History of Central Europe
  • Subclass DB - History of Austria. Liechtenstein. Hungary. Czechoslovakia
  • Subclass DC - History of France
  • Subclass DD - History of Germany
  • Subclass DE - History of the Greco-Roman world
  • Subclass DF - History of Greece
  • Subclass DG - History of Italy
  • Subclass DH - History of Low Countries. Benelux Countries
  • Subclass DJ - History of Netherlands (Holland)
  • Subclass DJK - History of Eastern Europe (General)
  • Subclass DK - History of Russia. Soviet Union. Former Soviet Republics
  • Subclass DL - History of Northern Europe. Scandinavia
  • Subclass DP - History of Spain
  • Subclass DQ - History of Switzerland
  • Subclass DR - History of Balkan Peninsula
  • Subclass DS - History of Asia
  • Subclass DT - History of Africa
  • Subclass DU - History of Oceania (South Seas)
  • Subclass DX - History of Romanies
• E -- HISTORY OF THE AMERICAS
• F -- HISTORY OF THE AMERICAS
• G -- GEOGRAPHY. ANTHROPOLOGY. RECREATION
  • Subclass G - Geography (General) 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
• 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
  • Subclass HN - Social history and conditions. Social problems.
  • 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.
  • Subclass HX - Socialism. Communism. Anarchism
• J -- POLITICAL SCIENCE
  • Subclass J - General legislative and executive papers
  • Subclass JA - Political science (General)
  • Subclass JC - Political theory. The state. Theories of the state
  • 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(obsolete) - International law, see JZ and KZ
  • Subclass JZ - International relations
• 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. Halakah
  • Subclass KBP - Islamic law. Sharī#ah. Fiqh
  • Subclass KBR - History of canon law
  • Subclass KBU - Law of the Roman Catholic Church. The Holy See
  • Subclass KD-KDK - Law of the 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
  • Subclass KJ-KKZ - Europe
  • Subclass KL-KWX - Asia and Eurasia, Africa, Pacific Area, and Antarctica
  • Subclass KZ - Law of Nations

• 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
• M -- MUSIC AND BOOKS ON MUSIC
  • Subclass M - Music
  • Subclass ML - Literature on music
  • Subclass MT - Instruction and study
• 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
• P -- LANGUAGE AND LITERATURE
  • Subclass P - Philology. Linguistics
  • Subclass PA - Classical philology
  • Subclass PB - Modern languages. Celtic languages
  • Subclass PC - Romance
  • Subclass PD - Germanic
  • Subclass PE - English
  • Subclass PF - West Germanic
  • Subclass PG - Slavic. Baltic. Albanian
  • Subclass PH - Uralic. Basque
  • Subclass PJ - Oriental philology and literature
  • Subclass PK - Indo-Iranian philology and literature
  • Subclass PL - Languages of Eastern Asia, Africa, Oceania
  • Subclass PM - Hyperborean, Indian, and artificial languages
  • Subclass PN - Literature (General)
  • Subclass PQ - French literature
  • Subclass PR - English literature
  • Subclass PS - American literature
  • Subclass PT - German literature
  • Subclass PZ - Fiction and juvenile belles lettres
• Q -- SCIENCE
  • Subclass Q - Science (General)
  • Subclass QA - Mathematics
  • Subclass QB - Astronomy
  • Subclass QC - Physics
  • Subclass QD - Chemistry
  • Subclass QE - Geology
  • Subclass QH - Natural history (General)
  • Subclass QK - Botany
  • Subclass QL - Zoology
  • Subclass QM - Human anatomy
  • Subclass QP - Physiology
  • Subclass QR - Microbiology
• 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
• 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
• T -- TECHNOLOGY
  • Subclass T - Technology (General)
  • Subclass TA - Engineering (General). Civil engineering (General)
  • Subclass TC - Hydraulic 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
• 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
  • Subclass UH - Other services
• 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
• Z -- BIBLIOGRAPHY. LIBRARY SCIENCE. INFORMATION RESOURCES (GENERAL)
  • Subclass Z - Books (General). Writing. Paleography
  • Subclass ZA - Information resources (General)