The call number system used by the University of Cincinnati is the Library of Congress Classification.  This is different than the system used by most high schools and public libraries also known as the Dewey Decimal Classification system.  The Library of Congress system uses a combination of letters and numbers whereas the Dewey Decimal system uses primarily numbers.

A - D	K - Q
E - J	R - Z

The following is an abbreviated list of the general Library of Congress classifications and the subjects they represent. Be aware that some items may cross subjects and be located where you would not expect. Once you have defined a specific topic, a catalogue search may produce items not found by general browsing.

A – General Works AC – Collected Works AE – Encyclopedias AG – Dictionaries AI – Indexes AN – Newspapers AS – Academies and Learned Societies AY – Yearbooks AZ – The Humanities B – Philosophy, Psychology, Religion B – Philosophy (general) BC – Logic BD – Speculative Philosophy BF – Psychology BH – Aesthetics BJ – Ethics BL – Religions, Mythology BM – Judaism BP – Islam BQ – Buddhism BR – Christianity BS – The Bible BT – Doctrinal Theology BV – Practical Theology BX Christian Denominations C – Auxiliary Sciences of History CB – History of Civilization CC – Archaeology CS – Genealogy CT – Biography D – History General & Europe DA – Great Britain DB – Austria, Liechtenstein, Hungary, Czechoslovakia DC – France, Andorra, Monaco DD – Germany DE – Greco-Roman World DF – Greece DG – Italy, Malta DK – Russia, Former Soviet Republics DL – Northern Europe DP – Spain, Portugal DR – Balkan Peninsula DS – Asia DT – Africa DU – Oceania (Back to the top) E, F – History America G – Geography, Anthropology G – Geography (general), Atlases, Maps GB – Physical Geography GC – Oceanography GE – Environmental Sciences GN – Anthropology GR – Folklore GT – Manners and Customs GV - Recreation H – Social Sciences HA – Statistics HB – Economic Theory HC – Economic History HD – Industries HE – Transportation and Communications HF – Commerce HG – Finance HJ – Public Finance HM – Sociology (general) HN – Social History, Problem, and Reform HQ – Family, Marriage, Women HT – Communities HV – Criminology HX - Socialism J – Political Science JA – Political Science (general) JC – Political Theory JF – Political Institutions and Public Administration (General) JJ - Political Institutions and Public Administration (North America) JK - Political Institutions and Public Administration (United States) JN - Political Institutions and Public Administration (Europe) JS – Local and Municipal Government JV – Colonies, Immigration JZ – International Relations (Back to the top)

K – Law L – Education LA – History of LB – Theory & Practice of LC – Special Aspects of LD – Individual Institutions – United States M – Music N - Fine Arts N – Visual Arts NA – Architecture NB – Sculpture NC – Drawing ND – Painting NE – Print Media NK – Decorative Arts NX – Arts in General P – Language and Literature P – Linguistics PA – Greek and Latin Language and Literature PC – Romanic Languages PE – English Language PF – West Germanic Languages PG – Slavic Languages PJ – Oriental Languages and Literatures PL – Eastern Asia, Africa, and Oceania Languages and Literature PN – Literature (general) PQ – French, Italian, Spanish, and Portuguese Literature PR – English Literature PS – American Literature PT – German Literature PZ – Fiction and Juvenile Belles letters Q – Science Q – Science (general) QA – Mathematics QB – Astronomy QC – Physics QD – Chemistry QE – Geology QH – Natural History, Biology QK – Botany QL – Zoology QM – Human Anatomy QP – Physiology QR - Microbiology (Back to the top) R – Medicine R – Medicine (general) RA – Public Aspects of Medicine RB – Pathology RC – Internal Medicine RD – Surgery RG – Gynecology and Obstetrics RJ – Pediatrics RM – Therapeutics, Pharmacology RS – Pharmacy and Material Medica RT - Nursing S – Agriculture S – Agriculture (General) SB – Plant Culture SF – Animal Culture T – Technology T – Technology (General) TA – Engineering General and Civil TD – Environmental Technology, Sanitary Engineering TH – Building Construction TJ – Mechanical Engineering TK – Electrical and Nuclear Engineering TL – Motor Vehicles, Aeronautics, Astronautics TP – Chemical Technology TR – Photography TS – Manufactures TT – Handicrafts, Arts and Crafts TX – Home Economics U – Military Science UA – Armies UB – Military Administration UG – Military Engineering, Air Forces V – Naval Science Z – Bibliography, Writing, Paleography (Back to the top)

created 07/18/2005 - Diana S. Riemenschneider