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Library of Congress Subject Areas
(32087)
A General Works
(105)
AC Collections. Series. Collected works
(50)
AI Indexes (General)
(3)
AM Museums (General). Collectors and collecting (General)
(5)
AN Newspapers
(1)
AS Academies and learned societies (General)
(2)
AZ History of Scholarship The Humanities
(5)
B Philosophy. Psychology. Religion
(1001)
B Philosophy (General)
(33)
BD Speculative Philosophy
(4)
BF Psychology
(200)
BJ Ethics
(2)
BL Religion
(95)
BM Judaism
(1)
BP Islam. Bahaism. Theosophy, etc
(716)
Islam
(345)
General
(16)
Relation of Islam to other religions
(4)
BQ Buddhism
(3)
BR Christianity
(3)
BS The Bible
(1)
BT Doctrinal Theology
(2)
BV Practical Theology
(2)
BV1460 Religious Education
(2)
C Auxiliary Sciences of History
(8)
C Auxiliary sciences of history (General)
(3)
CB History of civilization
(3)
CC Archaeology
(2)
D History General and Old World
(157)
D History (General)
(38)
D111 Medieval History
(2)
D501 World War I
(1)
D731 World War II
(2)
D839 Post-war History, 1945 on
(1)
D880 Developing Countries
(2)
D901 Europe (General)
(1)
DK Russia. Soviet Union. Former Soviet Republics
(1)
DP Spain
(2)
DS Asia
(122)
DT Africa
(6)
G Geography. Anthropology. Recreation
(740)
G Geography (General)
(55)
GA Mathematical geography. Cartography
(1)
GB Physical geography
(12)
GC Oceanography
(42)
GE Environmental Sciences
(416)
GF Human ecology. Anthropogeography
(32)
GN Anthropology
(30)
GR Folklore
(2)
GT Manners and customs
(8)
GV Recreation Leisure
(141)
H Social Sciences
(2239)
H Social Sciences (General)
(690)
HA Statistics
(37)
Statistical data
(5)
HB Economic Theory
(280)
Business cycles. Economic fluctuations
(31)
Competition. Production. Wealth
(11)
Consumption. Demand
(3)
Methodology
(6)
HC Economic History and Conditions
(308)
Special topics
(1)
HD Industries. Land use. Labor
(249)
HD28 Management. Industrial Management
(73)
HD61 Risk Management
(4)
HE Transportation and Communications
(39)
HF Commerce
(470)
Business
(231)
Accounting. Bookkeeping
(16)
Advertising
(3)
Business communication
(3)
Business ethics
(1)
Business records management
(4)
Marketing. Distribution of products
(11)
By region or country
(4)
HG Finance
(292)
Banking
(50)
Credit. Debt. Loans
(9)
Foreign exchange. International finance.
(15)
Money
(2)
Personal finance
(6)
HJ Public Finance
(17)
HM Sociology
(79)
HN Social history and conditions. Social problems. Social reform
(98)
HQ The family. Marriage. Woman
(116)
HS Societies secret benevolent etc
(4)
HT Communities. Classes. Races
(70)
HV Social pathology. Social and public welfare
(52)
J Political Science
(110)
J General legislative and executive papers
(3)
JA Political science (General)
(59)
JC Political theory
(5)
JF Political institutions (General)
(8)
JN Political institutions (Europe)
(2)
JQ Political institutions Asia
(22)
JV Colonies and colonization. Emigration and immigration. International migration
(2)
JX International law
(9)
JZ International relations
(27)
K Law
(224)
K Law (General)
(224)
KZ Law of Nations
(2)
L Education
(1076)
L Education (General)
(750)
LA History of education
(22)
LB Theory and practice of education
(419)
LB1501 Primary Education
(17)
LB1603 Secondary Education. High schools
(16)
LB2300 Higher Education
(84)
LB2361 Curriculum
(18)
LC Special aspects of education
(85)
LC5201 Education extension. Adult education. Continuing education
(3)
LG Individual institutions (Asia. Africa)
(25)
LT Textbooks
(1)
M Music and Books on Music
(30)
M Music
(27)
ML Literature of music
(3)
MT Musical instruction and study
(4)
N Fine Arts
(119)
N Visual arts (General) For photography, see TR
(21)
NA Architecture
(82)
ND Painting
(1)
NE Print media
(1)
NK Decorative arts Applied arts Decoration and ornament
(2)
NX Arts in general
(17)
P Language and Literature
(520)
P Philology. Linguistics
(262)
Communication. Mass media
(88)
PA Classical philology
(1)
PB Modern European Languages
(10)
PC Romance languages
(5)
PD Germanic languages
(3)
PE English
(101)
PG Slavic, Baltic, Albanian languages and literature
(4)
PI Oriental languages and literatures
(10)
PJ Semitic
(12)
PK Indo-Iranian
(3)
PL Languages and literatures of Eastern Asia, Africa, Oceania
(110)
PM Hyperborean, Indian, and Artificial languages
(3)
PN Literature (General)
(56)
PN0080 Criticism
(1)
PN0441 Literary History
(1)
PN1990 Broadcasting
(5)
PN1993 Motion Pictures
(3)
PN2000 Dramatic representation. The Theater
(3)
PQ Romance literatures
(1)
PR English literature
(20)
PS American literature
(3)
PZ Childrens literature
(1)
Q Science
(12056)
Q Science (General)
(5112)
QA Mathematics
(1935)
QA75 Electronic computers. Computer science
(1385)
QA76 Computer software
(131)
QB Astronomy
(27)
QC Physics
(3041)
QD Chemistry
(3086)
QE Geology
(200)
QH Natural history
(1939)
QH301 Biology
(907)
QH426 Genetics
(24)
QK Botany
(109)
QL Zoology
(82)
QM Human anatomy
(12)
QP Physiology
(50)
QR Microbiology
(540)
QR180 Immunology
(31)
QR355 Virology
(31)
R Medicine
(9442)
R Medicine (General)
(1535)
Medical technology
(133)
RA Public aspects of medicine
(596)
RA0421 Public health. Hygiene. Preventive Medicine
(242)
RA1001 Forensic Medicine. Medical jurisprudence. Legal medicine
(6)
RB Pathology
(160)
General works
(6)
Theories of disease. Etiology. Pathogenesis
(34)
RC Internal medicine
(714)
RC0254 Neoplasms. Tumors. Oncology (including Cancer)
(201)
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
(124)
RC1200 Sports Medicine
(63)
RC306-320.5 Tuberculosis
(5)
RD Surgery
(235)
RE Ophthalmology
(80)
Artificial eyes and other prostheses
(1)
Eye surgery
(3)
Ophthalmology
(13)
Optometry. Opticians. Eyeglasses
(6)
RF Otorhinolaryngology
(80)
Otology. Diseases of the ear
(5)
RG Gynecology and obstetrics
(106)
Obstetrics
(3)
Pregnanc
(1)
RJ Pediatrics
(207)
Child health. Child health services
(20)
Diseases of children and adolescents
(6)
Mental disorders. Child psychiatry
(4)
Genetic aspect
(2)
Hospital care
(1)
RK Dentistry
(1136)
Practice of dentistry. Dental economics
(55)
Oral surgery
(146)
Preventive dentistry
(12)
RL Dermatology
(26)
Pathological anatomy
(3)
RM Therapeutics. Pharmacology
(352)
Drug prescribing
(2)
RS Pharmacy and materia medica
(269)
Pharmacopoeia
(6)
RT Nursing
(85)
Specialties in nursing
(1)
RV Botanic, Thomsonian, and eclectic medicine
(35)
RX Homeopathy
(15)
Diseases, treatment, etc
(10)
Materia medica and therapeutic
(3)
RZ Other systems of medicine
(28)
Mental healing
(8)
Osteopathy
(2)
S Agriculture
(362)
S Agriculture (General)
(248)
SB Plant culture
(51)
SD Forestry
(19)
SF Animal culture
(20)
SH Aquaculture. Fisheries. Angling
(44)
SK Hunting sports
(2)
T Technology
(8776)
T Technology (General)
(1955)
TA Engineering (General). Civil engineering (General)
(3428)
TC Hydraulic engineering. Ocean engineering
(23)
TD Environmental technology. Sanitary engineering
(223)
TE Highway engineering. Roads and pavements
(7)
TG Bridge engineering
(2)
TH Building construction
(356)
TJ Mechanical engineering and machinery
(1589)
TK Electrical engineering. Electronics Nuclear engineering
(2317)
TL Motor vehicles. Aeronautics. Astronautics
(38)
TN Mining engineering. Metallurgy
(23)
TP Chemical technology
(1116)
TR Photography
(6)
TS Manufactures
(178)
TX Home economics
(18)
U Military Science
(3)
U Military Science (General)
(3)
V Naval Science
(5)
V Naval Science (General)
(1)
VM Naval architecture. Shipbuilding. Marine engineering
(4)
Z Bibliography. Library Science. Information Resources
(581)
Books (General). Writing. Paleography
(8)
Information resources (General)
(48)
Information services. Information centers
(14)
Libraries
(270)
Collections
(50)
Library science. Information science
(88)
Libraries (General)
(46)