Library of Congress
Classification System

If you are adventurous or would just like to browse, the first letter of the call number will help you find the general subject areas of the Library of Congress Classification system. By looking at the beginning letters of the call number you can tell what subject area you are in.

A General Works JF Constitutions QL Zoology
AE Encyclopedias K Law QM Human Anatomy
AG Dictionaries KF Law-US R Medicine
B Philos., Psych., & Rel. KFN Law-North Carolina RB Pathology
BF Psychology L Education RD Surgery
BL Religion LB Education Theory RM Massage Therapy
C Auxiliary Sciences of History M Music RT Nursing
CS Genealogy ML Music Literature S Agriculture
CT Biography MT Music Instruction SF Gardening
D History: General & European N Fine Arts SH Aquaculture
DA Great Britain NA Architecture T Technology
DK Russia NC Design TD Environmental
DT Africa ND Painting TJ Mechanical
E History: America NK Decorative Art TK Electrical
F History: US-Local P Language & Literature TL Motor Vehicle
G Geography PB Modern Languages TR Photography
GC Oceanography PC Romantic Languages TT Handicrafts
GV Recreation PR English Literature TX Culinary Science
H Social Sciences PS American Literature U Military Science
HF Commerce Q Science (General) V Naval Science
HM Sociology (General) QA Math & Computers VM Boats & Boating
J Political Science QD Chemistry Z Bibliography