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Library of Congress Subject Areas
(6225)
A General Works
(46)
AC Collections. Series. Collected works
(7)
AC1-195 Collection Of Monographs, Essays, etc.
(4)
AC Encyclopedias
(2)
AG Dictionaries And Other General Reference Works
(11)
AI Indexes (General)
(6)
AM Museums (General). Collectors and collecting (General)
(1)
AN Newspapers
(2)
AS Academies and learned societies (General)
(24)
AZ History of Scholarship The Humanities
(1)
B Philosophy. Psychology. Religion
(146)
B Philosophy (General)
(11)
BF Psychology
(128)
Affection. Feeling. Emotion
(25)
Consciousness. Cognition
(7)
Experimental psychology
(3)
Gestalt psychology
(1)
Motivation
(10)
Philosophy. Relation to other topics
(3)
Psychoanalysis
(4)
Psychological tests and testing
(2)
Psychology
(90)
BH Aesthetics
(2)
BJ Ethics
(2)
BL Religion
(7)
BP Islam. Bahaism. Theosophy, etc
(2)
BQ Buddhism
(3)
BR Christianity
(2)
BX Christian Denominations
(1)
C Auxiliary Sciences of History
(2)
C Auxiliary sciences of history (General)
(1)
CB History of civilization
(1)
CD Diplomatics. Archives. Seals
(1)
CD921 Archives
(1)
D History General and Old World
(5)
D History (General)
(4)
D880 Developing Countries
(1)
DF Greece
(1)
DH Netherlands (The Low Countries)
(1)
E History America
(2)
E11 America (General)
(1)
E151 United States (General)
(1)
G Geography. Anthropology. Recreation
(11)
G Geography (General)
(5)
GA Mathematical geography. Cartography
(2)
GE Environmental Sciences
(1)
GF Human ecology. Anthropogeography
(1)
GV Recreation Leisure
(2)
H Social Sciences
(3318)
H Social Sciences (General)
(2570)
HA Statistics
(31)
HB Economic Theory
(380)
HC Economic History and Conditions
(112)
HD Industries. Land use. Labor
(93)
HD28 Management. Industrial Management
(75)
HD61 Risk Management
(6)
HE Transportation and Communications
(13)
HF Commerce
(135)
HF5601 Accounting
(83)
HG Finance
(335)
HJ Public Finance
(100)
HM Sociology
(24)
HN Social history and conditions. Social problems. Social reform
(91)
HQ The family. Marriage. Woman
(11)
HS Societies secret benevolent etc
(1)
HT Communities. Classes. Races
(16)
HV Social pathology. Social and public welfare
(10)
HX Socialism. Communism. Anarchism
(4)
J Political Science
(7)
JA Political science (General)
(1)
JC Political theory
(4)
JF Political institutions (General)
(4)
JS Local government Municipal government
(1)
K Law
(4)
K Law (General)
(4)
L Education
(440)
L Education (General)
(359)
LA History of education
(17)
LB Theory and practice of education
(123)
LB1501 Primary Education
(45)
LB1603 Secondary Education. High schools
(14)
LB2300 Higher Education
(27)
LB2361 Curriculum
(4)
LC Special aspects of education
(14)
LC5201 Education extension. Adult education. Continuing education
(2)
LD Individual institutions (United States)
(1)
LE Individual institutions (America except United States)
(1)
LG Individual institutions (Asia. Africa)
(3)
LT Textbooks
(13)
M Music and Books on Music
(7)
M Music
(5)
ML Literature of music
(2)
N Fine Arts
(192)
N Visual arts (General) For photography, see TR
(11)
NA Architecture
(189)
NC Drawing Design Illustration
(12)
NE Print media
(1)
NK Decorative arts Applied arts Decoration and ornament
(5)
NX Arts in general
(1)
P Language and Literature
(25)
P Philology. Linguistics
(1)
PE English
(13)
PI Oriental languages and literatures
(1)
PL Languages and literatures of Eastern Asia, Africa, Oceania
(2)
PN Literature (General)
(3)
PN0441 Literary History
(1)
PQ Romance literatures
(1)
PR English literature
(6)
PZ Childrens literature
(2)
Q Science
(334)
Q Science (General)
(197)
QA Mathematics
(45)
QA75 Electronic computers. Computer science
(19)
QA76 Computer software
(30)
QC Physics
(5)
QD Chemistry
(61)
QE Geology
(1)
QH Natural history
(2)
QH301 Biology
(1)
QL Zoology
(1)
QM Human anatomy
(32)
QP Physiology
(9)
QR Microbiology
(9)
R Medicine
(944)
R Medicine (General)
(219)
RA Public aspects of medicine
(25)
RA0421 Public health. Hygiene. Preventive Medicine
(21)
RB Pathology
(21)
RC Internal medicine
(14)
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
(2)
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
(4)
RD Surgery
(6)
RG Gynecology and obstetrics
(94)
RJ Pediatrics
(21)
RJ101 Child Health. Child health services
(4)
RL Dermatology
(2)
RM Therapeutics. Pharmacology
(7)
RS Pharmacy and materia medica
(3)
RT Nursing
(613)
RZ Other systems of medicine
(154)
S Agriculture
(5)
S Agriculture (General)
(4)
SH Aquaculture. Fisheries. Angling
(1)
SK Hunting sports
(1)
T Technology
(1061)
T Technology (General)
(536)
T201 Patents. Trademarks
(13)
TA Engineering (General). Civil engineering (General)
(92)
TC Hydraulic engineering. Ocean engineering
(4)
TD Environmental technology. Sanitary engineering
(147)
TE Highway engineering. Roads and pavements
(3)
TF Railroad engineering and operation
(1)
TG Bridge engineering
(1)
TH Building construction
(68)
TJ Mechanical engineering and machinery
(141)
TK Electrical engineering. Electronics Nuclear engineering
(14)
TL Motor vehicles. Aeronautics. Astronautics
(3)
TN Mining engineering. Metallurgy
(6)
TP Chemical technology
(59)
TR Photography
(1)
TS Manufactures
(166)
TT Handicrafts Arts and crafts
(53)
TX Home economics
(33)
U Military Science
(1)
U Military Science (General)
(1)
Z Bibliography. Library Science. Information Resources
(57)
Z004 Books. Writing. Paleography
(2)
Z665 Library Science. Information Science
(25)
Z719 Libraries (General)
(11)
ZA Information resources
(26)
ZA4050 Electronic information resources
(6)
ZA4450 Databases
(7)