Library of Congress Classification (LC)

Outline of the Library of Congress Classification

A General Work
AE Encyclopedias
AI Indexes
AY Almanacs
B Philosophy/Psychology/Religion
B-BD Philosophy
BF Psychology
BL-BX Religion
C History: Related Fields
CC Archaeology
CD Archives
CT Biography
D History: (except America)
E History: America (General) & U.S. (General)
F History: U.S. (Local) & North American (except U.S.), Central America, and South American
G Geography/Anthropology/Recreation
G-GF Geography
GN Anthropology
GR Folklore
GV Recreation
H Social Sciences
HA Statistics
HB-HE Economics
HD Labor (Professions)
HF Commerce, Accounting, Advertising
HG Finance
HM Sociology
HQ Family, Marriage, Women's Studies
HV Social Pathology, Welfare & Criminology
HX Socialism, Communism $ Anarchism
J Political Science
JK United States
JX International Law
K Law
KF Law of the U.S.
KFN Law of North Carolina
L Education
LA History of Education
LB Theory & Practice of Education
LC Special Aspects of Education
M Music
M Musical Score
ML Literature of Music
MT Musical Instruction and Study
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 Languages and Literature
P Philology, Linguistics, Communication
PA Classical Languages & Literatures
PB-PH Modern European Languages
PE English Language
PN Literary History and Collections
PQ Romance Literature
PR English Literature
PS American Literature
PT Germanic Literature
Q Science
QA Mathematics (including Computer Sciences)
QC Physics
QD Chemistry
QE Geology
QH Natural History (including General Biology)
QK Botany
QL Zoology
QP Physiology
QR Microbiology
R Medicine
RA Public Aspects of Medicine
RC Internal Medicine and Practice of Medicine
RT Nursing
S Agriculture
SB Plant Culture
SD Forestry
SH Aquaculture
T Technology
TD Environmental Technology
TP Chemical Technology
U Military Science
V Naval Science
Z Bibliography and Library Science

Starting Points

Reading Library of Congress Call Numbers

Randall Library's materials are arranged according to the Library of Congress Classification Scheme and each item is assigned an individual call number according to the subject area the item falls under. Listed below is a brief subject outline of LC Classification and the corresponding base call number. Also included is a tutorial for reading and understanding the order of LC Call Numbers.

  1. Every Library of Congress (LC) call number begins with one to three letters, followed by various combinations of whole numbers, decimal numbers, and/or letters. Sometimes at the end of the call number will be a year, a volume number, and a copy number.
  2. Items are arranged in alpha-numeric order, with single-letter call numbers shelved ahead of multiple letter call numbers with the same first letter.
    Thus, H40 comes before HA1.
  3. Numbers to the left of the decimal point in LC call numbers are whole numbers.
    Thus, HF54 (HF Fifty-four) comes before HF5381 (HF Five-thousand, three-hundred, eight-one).
  4. Numbers to the right of the decimal point in LC call numbers are decimal numbers.
    Thus, HF5381 .M37 (M Thirty-seven hundredths) comes before HF5381 .M5 (M Five-tenths or Fifty-hundredths).

The following call numbers are in correct shelf order for the reasons given:

  • GV1787 .D513
  • H40 .A2 I5 - H comes after G alphabetically
  • HA1 .D3 1989 - HA comes after H
  • HA1 .D3 1990 1990 - comes after 1989
  • HF54 .U5 P74 - HF comes after HA
  • HF5381 .E52 - 5,381 is larger than 54
  • HF5381 .M37 - M comes after E
  • HF5381 .M5 - .5 (.50) is larger than .37
  • HF5415 .S272 - 5,415 is larger than 5,381
  • HF5415.1263 .B46 - 5415.126 is larger than 5415 (5415.0000)
  • HF5415.2 .S89 - .2(.2000) is larger than .1263

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