Our library uses the Library of Congress Classification System. The system is broken up into the following categories:
(Note: There are some letters that are not connected to a category. This is so that the system can be expanded later.)
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
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 (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 – Romanies
Classes E and F - History of the Americas
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
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 and Sexuality
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
No Class I
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
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
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 and Books on Music
Subclass M – Music
Subclass ML – Literature on music
Subclass MT – Instruction and study
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
No Class O
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 and literature
Subclass PC – Romanic languages
Subclass PD – Germanic languages. Scandinavian languages
Subclass PE – English language
Subclass PF – West Germanic languages
Subclass PG – Slavic languages and literature. Baltic languages. Albanian language
Subclass PH – Uralic languages. Basque language
Subclass PJ – Oriental languages and literatures
Subclass PK – Indo-Iranian languages and literature
Subclass PL – Languages and literature of Eastern Asia, Africa, Oceania
Subclass PM – Hyperborean, Native American, 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
Subclass Q – Science (General)
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
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
Subclass S – Agriculture (General)
Subclass SB – Plant culture.
Subclass SD – Forestry.
Subclass SF – Animal Culture.
Subclass SH – Aquaculture. Fisheries. Angling
Subclass SK – Hunting
Subclass T – Technology (General)
Subclass TA – Engineering Civil engineering (General).
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
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 military services
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
No Classes W, X, or Y
Class Z - Bibliography, Library Science, Information Resources (General)
Subclass Z – Books (General). Writing. Paleography. Book industries and trade. Libraries. Bibliography
Subclass ZA – Information resources (General)
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