Library of Congress Classification

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 -- LIBRARY SCIENCE

This outline provides initial suggestions for where to browse for books on a particular subject. The subject divisions not absolute, however. For example, books in various aspects of environmental sciences may be in G (geography), Q (sciences), S (agriculture), or T (technology), among other places in the collection. Books on drug abuse may be in H (social sciences) or in R (medicine), among other places. Use The Oregon Tech Library Catalog to find  specific books on your subject.