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Library of Congress Subject Areas
(6123)
A General Works
(904)
AC Collections. Series. Collected works
(271)
AI Indexes (General)
(133)
AM Museums (General). Collectors and collecting (General)
(10)
AS Academies and learned societies (General)
(525)
AZ History of Scholarship The Humanities
(7)
B Philosophy. Psychology. Religion
(4)
BC Logic
(1)
BD Speculative Philosophy
(1)
BF Psychology
(2)
C Auxiliary Sciences of History
(10)
C Auxiliary sciences of history (General)
(2)
CB History of civilization
(2)
CD Diplomatics. Archives. Seals
(2)
CD921 Archives
(2)
CE Technical chronology. Calendar
(5)
CT Biography
(1)
D History General and Old World
(1)
D History (General)
(1)
D051 Ancient History
(1)
G Geography. Anthropology. Recreation
(33)
G Geography (General)
(17)
GA Mathematical geography. Cartography
(2)
GB Physical geography
(1)
GC Oceanography
(1)
GE Environmental Sciences
(2)
GF Human ecology. Anthropogeography
(2)
GN Anthropology
(2)
GV Recreation Leisure
(7)
H Social Sciences
(1912)
H Social Sciences (General)
(181)
HA Statistics
(30)
HB Economic Theory
(24)
HC Economic History and Conditions
(12)
HD Industries. Land use. Labor
(31)
HD28 Management. Industrial Management
(2)
HD61 Risk Management
(7)
HE Transportation and Communications
(1821)
HF Commerce
(9)
HF5601 Accounting
(1)
HG Finance
(13)
HJ Public Finance
(17)
HM Sociology
(1)
HN Social history and conditions. Social problems. Social reform
(5)
HV Social pathology. Social and public welfare
(1)
J Political Science
(15)
J General legislative and executive papers
(2)
JA Political science (General)
(12)
JC Political theory
(5)
JF Political institutions (General)
(4)
JK Political institutions (United States)
(1)
JL Political institutions (America except United States)
(1)
JS Local government Municipal government
(1)
K Law
(60)
K Law (General)
(59)
KZ Law of Nations
(1)
L Education
(1184)
L Education (General)
(1099)
LA History of education
(28)
LB Theory and practice of education
(111)
LB1501 Primary Education
(7)
LB1603 Secondary Education. High schools
(11)
LB2300 Higher Education
(17)
LB2361 Curriculum
(1)
LC Special aspects of education
(13)
LC5201 Education extension. Adult education. Continuing education
(8)
LD Individual institutions (United States)
(4)
LE Individual institutions (America except United States)
(1)
LG Individual institutions (Asia. Africa)
(8)
LT Textbooks
(24)
N Fine Arts
(3)
N Visual arts (General) For photography, see TR
(1)
NA Architecture
(3)
NC Drawing Design Illustration
(1)
ND Painting
(1)
NK Decorative arts Applied arts Decoration and ornament
(1)
P Language and Literature
(2)
PR English literature
(1)
PS American literature
(1)
Q Science
(98)
Q Science (General)
(85)
QA Mathematics
(9)
QA75 Electronic computers. Computer science
(2)
QA76 Computer software
(2)
QC Physics
(6)
QE Geology
(3)
QP Physiology
(1)
R Medicine
(9)
R Medicine (General)
(5)
RA Public aspects of medicine
(1)
RZ Other systems of medicine
(3)
S Agriculture
(2)
SB Plant culture
(2)
T Technology
(4248)
T Technology (General)
(281)
T201 Patents. Trademarks
(6)
TA Engineering (General). Civil engineering (General)
(1081)
TC Hydraulic engineering. Ocean engineering
(25)
TD Environmental technology. Sanitary engineering
(75)
TE Highway engineering. Roads and pavements
(2911)
TF Railroad engineering and operation
(566)
TG Bridge engineering
(14)
TH Building construction
(155)
TJ Mechanical engineering and machinery
(23)
TK Electrical engineering. Electronics Nuclear engineering
(15)
TL Motor vehicles. Aeronautics. Astronautics
(163)
TN Mining engineering. Metallurgy
(3)
TP Chemical technology
(1)
TS Manufactures
(20)
TX Home economics
(4)
V Naval Science
(10)
V Naval Science (General)
(5)
VM Naval architecture. Shipbuilding. Marine engineering
(5)
Z Bibliography. Library Science. Information Resources
(2144)
Z004 Books. Writing. Paleography
(1102)
Z665 Library Science. Information Science
(1951)
Z719 Libraries (General)
(710)
ZA Information resources
(207)
ZA4050 Electronic information resources
(82)
ZA4450 Databases
(167)