Library of Congress (LC) Classification Outline
The Library of Congress (LC) classification system is most often used in university libraries. Items that have LC call numbers with letters beginning before U are mainly located on the fifth floor of Morris Library. Items that have LC call numbers at the end of the alphabet are mainly located on the fourth floor of Morris Library Dewey books are stored at the basement.
A -- General works
B -- Philosophy Psychology. Religion
C -- Auxiliary sciences of history
D -- History: General and Old World
E -- History: America
F -- History: America
G -- Geography. Anthropology. Recreation.
H -- Social sciences
J -- Political science
K -- Law
L -- Education
M -- Music and books on music
N -- Fine arts
P -- Language and Literature
Q -- Science
R -- Medicine
S -- Agriculture
T -- Technology
U -- Military science
V -- Naval science
Z -- Bibliography. Library science. Information Science
How to Read Library of Congress (LC) Call Numbers
Read the first line in alphabetical order:
A, B, BF, C, D... L, LA, LB, LC, M, ML...
Read the second line as a whole number:
1, 2, 3, 45, 100, 101, 1000, 2000, 2430...
The third line is a combination of a letter and numbers. Read the letter alphabetically. Read the number as a decimal, eg:
.C65 = .65 .C724 = .724
Some call numbers have more than one combination letter-number line.
The last line is the year the book was published. Read in chronological order:
1985, 1991, 1992...
Ask A Librarian
There seems to be something wrong with your browser. Please try reloading this page.