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Library of Congress Subject Areas
(42771)
A General Works
(146)
AC Collections. Series. Collected works
(43)
AI Indexes (General)
(17)
AM Museums (General). Collectors and collecting (General)
(17)
AS Academies and learned societies (General)
(65)
AZ History of Scholarship The Humanities
(15)
B Philosophy. Psychology. Religion
(1320)
B Philosophy (General)
(199)
BC Logic
(1)
BD Speculative Philosophy
(12)
BF Psychology
(900)
BH Aesthetics
(5)
BJ Ethics
(97)
BL Religion
(94)
BM Judaism
(1)
BP Islam. Bahaism. Theosophy, etc
(47)
BR Christianity
(1)
BS The Bible
(15)
BV Practical Theology
(3)
BV1460 Religious Education
(2)
C Auxiliary Sciences of History
(25)
C Auxiliary sciences of history (General)
(2)
CB History of civilization
(2)
CD Diplomatics. Archives. Seals
(2)
CT Biography
(19)
D History General and Old World
(372)
D History (General)
(371)
D839 Post-war History, 1945 on
(2)
D880 Developing Countries
(1)
DS Asia
(2)
G Geography. Anthropology. Recreation
(1824)
G Geography (General)
(1172)
GA Mathematical geography. Cartography
(36)
GB Physical geography
(19)
GC Oceanography
(30)
GE Environmental Sciences
(146)
GF Human ecology. Anthropogeography
(32)
GN Anthropology
(48)
GR Folklore
(112)
GT Manners and customs
(62)
GV Recreation Leisure
(250)
H Social Sciences
(8816)
H Social Sciences (General)
(3399)
HA Statistics
(95)
HB Economic Theory
(1461)
HC Economic History and Conditions
(578)
HD Industries. Land use. Labor
(1010)
HD28 Management. Industrial Management
(758)
HD61 Risk Management
(183)
HE Transportation and Communications
(151)
HF Commerce
(798)
HF5601 Accounting
(534)
HG Finance
(667)
HJ Public Finance
(332)
HM Sociology
(395)
HN Social history and conditions. Social problems. Social reform
(506)
HQ The family. Marriage. Woman
(253)
HS Societies secret benevolent etc
(34)
HT Communities. Classes. Races
(96)
HV Social pathology. Social and public welfare
(96)
HX Socialism. Communism. Anarchism
(8)
HZ Management
(330)
J Political Science
(125)
J General legislative and executive papers
(49)
JA Political science (General)
(66)
JC Political theory
(8)
JF Political institutions (General)
(3)
JS Local government Municipal government
(13)
JX International law
(1)
K Law
(72)
K Law (General)
(66)
KD England and Wales
(1)
KZ Law of Nations
(5)
L Education
(21973)
L Education (General)
(11559)
LA History of education
(39)
LB Theory and practice of education
(6291)
LB1501 Primary Education
(1209)
LB1603 Secondary Education. High schools
(1585)
LB2300 Higher Education
(375)
LB2361 Curriculum
(128)
LC Special aspects of education
(6878)
LC5201 Education extension. Adult education. Continuing education
(418)
LD Individual institutions (United States)
(1)
LF Individual institutions (Europe)
(1)
LT Textbooks
(7)
M Music and Books on Music
(824)
M Music
(255)
ML Literature of music
(207)
MT Musical instruction and study
(477)
N Fine Arts
(1474)
CO Cosmetic
(25)
N Visual arts (General) For photography, see TR
(259)
NA Architecture
(3)
NB Sculpture
(1)
NC Drawing Design Illustration
(112)
ND Painting
(24)
NE Print media
(17)
NK Decorative arts Applied arts Decoration and ornament
(49)
NX Arts in general
(1059)
P Language and Literature
(3265)
P Philology. Linguistics
(1654)
PA Classical philology
(54)
PB Modern European Languages
(2)
PC Romance languages
(18)
PD Germanic languages
(1)
PE English
(436)
PH Finno-Ugrian, Basque languages and literatures
(1)
PI Oriental languages and literatures
(59)
PK Indo-Iranian
(1)
PL Languages and literatures of Eastern Asia, Africa, Oceania
(95)
PN Literature (General)
(981)
PN0080 Criticism
(60)
PN0441 Literary History
(11)
PN1990 Broadcasting
(3)
PN2000 Dramatic representation. The Theater
(15)
PQ Romance literatures
(50)
PR English literature
(121)
PZ Childrens literature
(12)
Q Science
(6718)
Q Science (General)
(1773)
QA Mathematics
(1498)
QA75 Electronic computers. Computer science
(37)
QA76 Computer software
(15)
QB Astronomy
(3)
QC Physics
(1407)
QD Chemistry
(1414)
QE Geology
(14)
QH Natural history
(646)
QH301 Biology
(618)
QH426 Genetics
(4)
QK Botany
(161)
QL Zoology
(59)
QM Human anatomy
(11)
QP Physiology
(5)
QR Microbiology
(114)
QR180 Immunology
(2)
QR355 Virology
(5)
R Medicine and Food
(3315)
Food General
(116)
Medicine General
(2635)
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
(2)
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
(2)
RC1200 Sports Medicine
(2587)
RA Public aspects of medicine
(55)
RA0421 Public health. Hygiene. Preventive Medicine
(43)
RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine
(3)
RJ Pediatrics
(7)
RJ101 Child Health. Child health services
(6)
RK Dentistry
(1)
RL Dermatology
(8)
RT Nursing
(2)
RV Botanic, Thomsonian, and eclectic medicine
(1)
RZ Other systems of medicine
(4)
Sport General
(579)
S Agriculture
(144)
S Agriculture (General)
(60)
SB Plant culture
(27)
SD Forestry
(14)
SF Animal culture
(16)
SH Aquaculture. Fisheries. Angling
(8)
SK Hunting sports
(39)
T Technology
(4144)
GT Technology (general)
(1634)
GT General Technology
(16)
TA Engineering (General). Civil engineering (General)
(430)
TC Hydraulic engineering. Ocean engineering
(4)
TD Environmental technology. Sanitary engineering
(5)
TE Highway engineering. Roads and pavements
(4)
TF Railroad engineering and operation
(4)
TG Bridge engineering
(2)
TH Building construction
(91)
TI Technology Information, Computer
(62)
TJ Mechanical engineering and machinery
(508)
TK Electrical engineering. Electronics Nuclear engineering
(495)
TL Motor vehicles. Aeronautics. Astronautics
(217)
TN Mining engineering. Metallurgy
(496)
TP Chemical technology
(7)
TR Photography
(3)
TS Manufactures
(90)
TT Handicrafts Arts and crafts
(163)
TX Home economics
(187)
U Military Science
(1)
U Military Science (General)
(1)
Z Bibliography. Library Science. Information Resources
(821)
Z004 Books. Writing. Paleography
(67)
Z665 Library Science. Information Science
(538)
Z719 Libraries (General)
(223)
ZA Information resources
(115)
ZA4050 Electronic information resources
(21)
ZA4450 Databases
(9)