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.
The following is an abbreviated list of the general Library of Congress classifications and the subjects they represent, in alphabetical order by the first subject. 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.
AS - Academies and Learned Societies BH - Aesthetics DT - Africa S - Agriculture S - Agriculture (General) PS - American Literature SF - Animal Culture GN - Anthropology CC - Archaeology NA - Architecture UA - Armies NX - Arts in General DS - Asia QB - Astronomy DB - Austria, Liechtenstein, Hungary, Czechoslovakia C - Auxiliary Sciences of History
DR - Balkan Peninsula Z - Bibliography, Writing, Paleography CT - Biography QK - Botany BQ - Buddhism TH - Building Construction
TP - Chemical Technology QD - Chemistry BX - Christian Denominations BR - Christianity AC - Collected Works JV - Colonies, Immigration HF - Commerce HT - Communities HV - Criminology
NK - Decorative Arts AG - Dictionaries BT - Doctrinal Theology NC - Drawing
PL - Eastern Asia, Africa, and Oceania Languages and Literature HB - Economic Theory HC - Economic History L - Education TK - Electrical and Nuclear Engineering AE - Encyclopedias TA - Engineering General and Civil PE - English Language PR - English Literature GE - Environmental Sciences TD - Environmental Technology, Sanitary Engineering BJ - Ethics
HQ - Family, Marriage, Women PZ - Fiction and Juvenile Belles letters HG - Finance N - Fine Arts GR - Folklore DC - France, Andorra, Monaco PQ - French, Italian, Spanish, and Portuguese Literature
CS - Genealogy A - General Works G - Geography (general), Atlases, Maps G - Geography, Anthropology QE - Geology PT - German Literature DD - Germany DA - Great Britain DE - Greco-Roman World DF - Greece PA - Greek and Latin Language and Literature RG - Gynecology and Obstetrics
TT - Handicrafts, Arts and Crafts E, F - History America CB - History of Civilization D - History General & Europe LA - History of TX - Home Economics QM - Human Anatomy
AI - Indexes LD - Individual Institutions - United States HD - Industries RC - Internal Medicine JZ - International Relations BP - Islam DG - Italy, Malta
P - Language and Literature K - Law P - Linguistics PN - Literature (general) JS - Local and Municipal Government BC - Logic
GT - Manners and Customs TS - Manufactures QA - Mathematics TJ - Mechanical Engineering R - Medicine R - Medicine (general) QR - Microbiology U - Military Science UB - Military Administration UG - Military Engineering, Air Forces TL - Motor Vehicles, Aeronautics, Astronautics M - Music
QH - Natural History, Biology V - Naval Science AN - Newspapers DL - Northern Europe RT - Nursing
DU - Oceania GC - Oceanography PJ - Oriental Languages and Literatures
ND - Painting RB - Pathology RJ - Pediatrics RS - Pharmacy and Material Medica B - Philosophy (general) B - Philosophy, Psychology, Religion TR - Photography GB - Physical Geography QC - Physics QP - Physiology SB - Plant Culture JJ - Political Institutions and Public Administration (North America) JK - Political Institutions and Public Administration (United States) JN - Political Institutions and Public Administration (Europe) J - Political Science JA - Political Science (general) JC - Political Theory JF - Political Institutions and Public Administration (General) BV - Practical Theology NE - Print Media BF - Psychology HJ - Public Finance RA - Public Aspects of Medicine
GV - Recreation BL - Religions, Mythology PC - Romanic Languages DK - Russia, Former Soviet Republics
Q - Science Q - Science (general) NB - Sculpture PG - Slavic Languages H - Social Sciences HN - Social History, Problem, and Reform HX - Socialism HM - Sociology (general) DP - Spain, Portugal LC - Special Aspects of BD - Speculative Philosophy HA - Statistics RD - Surgery
T - Technology T - Technology (General) AZ - The Humanities BS - The Bible LB - Theory & Practice of RM - Therapeutics, Pharmacology HE - Transportation and Communications
