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Library of Congress (LC) Classifications: Get Started

Finding Books by Subject and Library of Congress (LC) Classification.

The first letter(s) of a call number not only indicate where a book is located, but also what a book is about, with call numbers assigned according to the following classification scheme below. Be sure to browse the nearby books if you’re looking for several books on a subject – you may find something that will be useful.

A - H

A - General Works
      AE   General Encyclopedias

B - Philosophy, Psychology and Religion
      B     Philosophy
      BC  Logic
      BF   Psychology
      BL-BX   Religion
      BP   Islam

C - History: auxiliary branches
      CB   History of Civilization
      CC   Archaeology
      CR   Heraldry
      CS   Genealogy
      CT   Biography (general)

D - History: General & Old World
      D      History (general)
      DA   Great Britain
      DC   France
      DE   Mediterranean region
      DK   Soviet Union
      DS   Middle East / Asia
      DT   Egypt / Africa

E-F - History: New World
       E   North America / U.S.
       F   Canada/Latin & South America

G - Geography, Anthropology, Recreation
      G     Geography (general), atlases and maps
      GB   Physical Geography
      GF   Human Ecology
      GN   Anthropology
      GR   Folklore / Manners & Customs
      GV   Recreation / Physical Ed

H - Social Science
     H     Social Sciences (general)
     HA  Statistics
     HB-HD   Economics
     HE   Transportation and Communications
     HF   Commerce / Management
     HG   Finance
     HJ    Accounting
     HM  Sociology (general)
     HQ   Family/Marriage 
     HS   Women’s Studies  
     HV   Social Welfare & Criminology

J - P

 J - Political Science
     J     Political Science (general)
     JC   Political Theory
     JF-JQ   Constitutional History
     JS   Local government
     JX   International Law

K - Law
     K     Law (general)
     KD  Law of the U.K.
     KF   Law of the United States
     KJ    Law of Europe
     KBL  Law of Islamic countries

L - Education
     LA   History of Education
     LB   Theory & Practice of Education
     LC    Social Aspects of Education
     LD-LG   Universities, Colleges, and Schools  

M - Music
     M     Musical Scores
     ML   Literature of Music
     MT   Musical Instruction

N - Fine Arts
     N  Visual Arts/Museums (general)
     NA Architecture
     NB Sculpture
     NC Drawing/ Design & Illustration
     ND Painting
     NE Print Media
     NK Decorative & Applied Arts
     NX Arts in General

P - Language and Literature
    P Linguistics & Philology, Rhetoric, Composition & Communication
    PA Classical Languages
    PC Romance Languages
    PD Germanic Languages
    PE English Language
    PJ Arabic/Oriental Languages & Literatures
    PN Literary History & Collections (general)
    PQ Romance Literatures
    PR English Literature
    PS American Literature
    PT Germanic Literature 

Q - Z

Q - Science
     Q Science (general)
     QA Mathematics / computer Science
     QB Astronomy
     QC Physics
     QD Chemistry
     QE Geology
     QH Biology / Natural History
     QK Botany
     QL Zoology
     QM Human Anatomy
     QP Physiology
     QR Microbiology

R - Medicine
     R Medicine (general)
     RA Public health
     RC Practice of Medicine
     RM Nutrition
     RM-RS Pharmacology
     RT Nursing

S - Agriculture
     S Agriculture (general)
     SB Plant Culture
     SD Forestry
     SF Animal Culture
     SH Aquaculture & Fisheries
     SK Wildlife Management

T - Technology
     T Technology (general)
     TA Engineering (general)
     TC Hydraulic Engineering
     TD Environmental Engineering
     TE Highway Engineering
     TH Building Construction
     TJ Mechanical Engineering
     TK Electrical Engineering and Electronics
     TL Aeronautics & Motor Vehicles
     TN Mining Engineering & Metallurgy
     TP Chemical Technology
     TR Photography
     TS Manufacturing
     TT Handicrafts
     TX Hotels & Food Service

U - V Military & Naval Science

Z - Bibliography & Library Library Science