1 |
subjects |
Library of Congress Subject Areas |
ROOT |
2 |
A |
General Works |
subjects |
3 |
AC |
Collections. Series. Collected works |
A |
4 |
AI |
Indexes (General) |
A |
5 |
AM |
Museums (General). Collectors and collecting (General) |
A |
6 |
AS |
Academies and learned societies (General) |
A |
7 |
AZ |
History of Scholarship The Humanities |
A |
8 |
B |
Philosophy. Psychology. Religion |
subjects |
9 |
B1 |
Philosophy (General) |
B |
10 |
BC |
Logic |
B |
11 |
BD |
Speculative Philosophy |
B |
12 |
BF |
Psychology |
B |
13 |
BH |
Aesthetics |
B |
14 |
BJ |
Ethics |
B |
15 |
BL |
Religion |
B |
16 |
BM |
Judaism |
B |
17 |
BP |
Islam. Bahaism. Theosophy, etc |
B |
18 |
BQ |
Buddhism |
B |
19 |
BR |
Christianity |
B |
20 |
BS |
The Bible |
B |
21 |
BT |
Doctrinal Theology |
B |
22 |
BV |
Practical Theology |
B |
23 |
BV1460 |
Religious Education |
BV |
24 |
BX |
Christian Denominations |
B |
25 |
C |
Auxiliary Sciences of History |
subjects |
26 |
C1 |
Auxiliary sciences of history (General) |
C |
27 |
CB |
History of civilization |
C |
28 |
CC |
Archaeology |
C |
29 |
CD |
Diplomatics. Archives. Seals |
C |
30 |
CD921 |
Archives |
CD |
31 |
CE |
Technical chronology. Calendar |
C |
32 |
CJ |
Numismatics |
C |
33 |
CN |
Inscriptions. Epigraphy. |
C |
34 |
CR |
Heraldry |
C |
35 |
CS |
Genealogy |
C |
36 |
CT |
Biography |
C |
37 |
D |
History General and Old World |
subjects |
38 |
D1 |
History (General) |
D |
39 |
D051 |
Ancient History |
D1 |
40 |
D111 |
Medieval History |
D1 |
41 |
D204 |
Modern History |
D1 |
42 |
D501 |
World War I |
D1 |
43 |
D731 |
World War II |
D1 |
44 |
D839 |
Post-war History, 1945 on |
D1 |
45 |
D880 |
Developing Countries |
D1 |
46 |
D890 |
Eastern Hemisphere |
D1 |
47 |
D901 |
Europe (General) |
D1 |
48 |
DA |
Great Britain |
D |
49 |
DAW |
Central Europe |
DA |
50 |
DB |
Austria |
D |
51 |
DC |
France |
D |
52 |
DD |
Germany |
D |
53 |
DE |
The Mediterranean Region. The Greco-Roman World |
D |
54 |
DF |
Greece |
D |
55 |
DG |
Italy |
D |
56 |
DH |
Netherlands (The Low Countries) |
D |
57 |
DJ |
Netherlands (Holland) |
D |
58 |
DJK |
Eastern Europe |
DJ |
59 |
DK |
Russia. Soviet Union. Former Soviet Republics |
D |
60 |
DL |
Northern Europe. Scandinavia |
D |
61 |
DP |
Spain |
D |
62 |
DR |
Balkan Peninsula |
D |
63 |
DS |
Asia |
D |
64 |
DT |
Africa |
D |
65 |
DU |
Oceania (South Seas) |
D |
66 |
E |
History America |
subjects |
67 |
E11 |
America (General) |
E |
68 |
E151 |
United States (General) |
E |
69 |
F |
History United States, Canada, Latin America |
subjects |
70 |
F001 |
United States local history |
F |
71 |
F1001 |
Canada (General) |
F |
72 |
F1201 |
Latin America (General) |
F |
73 |
G |
Geography. Anthropology. Recreation |
subjects |
74 |
G1 |
Geography (General) |
G |
75 |
GA |
Mathematical geography. Cartography |
G |
76 |
GB |
Physical geography |
G |
77 |
GC |
Oceanography |
G |
78 |
GE |
Environmental Sciences |
G |
79 |
GF |
Human ecology. Anthropogeography |
G |
80 |
GN |
Anthropology |
G |
81 |
GR |
Folklore |
G |
82 |
GT |
Manners and customs |
G |
83 |
GV |
Recreation Leisure |
G |
84 |
H |
Social Sciences |
subjects |
85 |
H1 |
social Sciences (General) |
H |
86 |
HA |
Statistics |
H |
87 |
HB |
Economic Theory |
H |
88 |
HC |
Economic History and Conditions |
H |
89 |
HD |
Industries. Land use. Labor |
H |
90 |
HD28 |
Management. Industrial Management |
HD |
91 |
HD61 |
Risk Management |
HD |
92 |
HE |
Transportation and Communications |
H |
93 |
HF |
Commerce |
H |
94 |
HF5601 |
Accounting |
HF |
95 |
HG |
Finance |
H |
96 |
HJ |
Public Finance |
H |
97 |
HM |
Sociology |
H |
98 |
HN |
Social history and conditions. Social problems. Social reform |
H |
99 |
HQ |
The family. Marriage. Woman |
H |
100 |
HS |
Societies secret benevolent etc |
H |
101 |
HT |
Communities. Classes. Races |
H |
102 |
HV |
Social pathology. Social and public welfare |
H |
103 |
HX |
Socialism. Communism. Anarchism |
H |
104 |
J |
Political Science |
subjects |
105 |
J1 |
General legislative and executive papers |
J |
106 |
JA |
Political science (General) |
J |
107 |
JC |
Political theory |
J |
108 |
JF |
Political institutions (General) |
J |
109 |
JK |
Political institutions (United States) |
J |
110 |
JL |
Political institutions (America except United States) |
J |
111 |
JN |
Political institutions (Europe) |
J |
112 |
JN101 |
Great Britain |
JN |
113 |
JN1187 |
Scotland |
JN |
114 |
JQ |
Political institutions Asia |
J |
115 |
JS |
Local government Municipal government |
J |
116 |
JV |
Colonies and colonization. Emigration and immigration. International migration |
J |
117 |
JX |
International law |
J |
118 |
JZ |
International relations |
J |
119 |
K |
Law |
subjects |
120 |
K1 |
Law (General) |
K |
121 |
KD |
England and Wales |
K |
122 |
KDC |
Scotland |
KD |
123 |
KF |
United States Federal Law |
K |
124 |
KZ |
Law of Nations |
K |
125 |
L |
Education |
subjects |
126 |
L1 |
Education (General) |
L |
127 |
LA |
History of education |
L |
128 |
LB |
Theory and practice of education |
L |
129 |
LB1501 |
Primary Education |
LB |
130 |
LB1603 |
Secondary Education. High schools |
LB |
131 |
LB2300 |
Higher Education |
LB |
132 |
LB2361 |
Curriculum |
LB |
133 |
LC |
Special aspects of education |
L |
134 |
LC5201 |
Education extension. Adult education. Continuing education |
LC |
135 |
LD |
Individual institutions (United States) |
L |
136 |
LE |
Individual institutions (America except United States) |
L |
137 |
LF |
Individual institutions (Europe) |
L |
138 |
LG |
Individual institutions (Asia. Africa) |
L |
139 |
LT |
Textbooks |
L |
140 |
M |
M Music and Books on Music |
subjects |
141 |
M1 |
Music |
M |
142 |
ML |
Literature of music |
M |
143 |
MT |
Musical instruction and study |
M |
144 |
N |
Fine Arts |
subjects |
145 |
N1 |
Visual arts (General) For photography, see TR |
N |
146 |
NA |
Architecture |
N |
147 |
NB |
Sculpture |
N |
148 |
NC |
Drawing Design Illustration |
N |
149 |
ND |
Painting |
N |
150 |
NE |
Print media |
N |
151 |
NK |
Decorative arts Applied arts Decoration and ornament |
N |
152 |
NX |
Arts in general |
N |
153 |
P |
Language and Literature |
subjects |
154 |
P1 |
Philology. Linguistics |
P |
155 |
PA |
Classical philology |
P |
156 |
PB |
Modern European Languages |
P |
157 |
PB1501 |
Gaelic (Scottish Gaelic, Erse) |
PB |
158 |
PC |
Romance languages |
P |
159 |
PD |
Germanic languages |
P |
160 |
PE |
English |
P |
161 |
PF |
West Germanic |
P |
162 |
PG |
Slavic, Baltic, Albanian languages and literature |
P |
163 |
PH |
Finno-Ugrian, Basque languages and literatures |
P |
164 |
PI |
Oriental languages and literatures |
P |
165 |
PJ |
Semitic |
P |
166 |
PK |
Indo-Iranian |
P |
167 |
PL |
Languages and literatures of Eastern Asia, Africa, Oceania |
P |
168 |
PM |
Hyperborean, Indian, and Artificial languages |
P |
169 |
PN |
Literature (General) |
P |
170 |
PN0080 |
Criticism |
PN |
171 |
PN0441 |
Literary History |
PN |
172 |
PN1990 |
Broadcasting |
PN |
173 |
PN1993 |
Motion Pictures |
PN |
174 |
PN2000 |
Dramatic representation. The Theater |
PN |
175 |
PQ |
Romance literatures |
P |
176 |
PR |
English literature |
P |
177 |
PS |
American literature |
P |
178 |
PT |
Germanic literature |
P |
179 |
PZ |
Childrens literature |
P |
180 |
Q |
Science |
subjects |
181 |
Q1 |
Science (General) |
Q |
182 |
QA |
Mathematics |
Q |
183 |
QA75 |
Electronic computers. Computer science |
QA |
184 |
QA76 |
Computer software |
QA |
185 |
QB |
Astronomy |
Q |
186 |
QC |
Physics |
Q |
187 |
QD |
Chemistry |
Q |
188 |
QE |
Geology |
Q |
189 |
QH |
Natural history |
Q |
190 |
QH301 |
Biology |
QH |
191 |
QH426 |
Genetics |
QH |
192 |
QK |
Botany |
Q |
193 |
QL |
Zoology |
Q |
194 |
QM |
Human anatomy |
Q |
195 |
QP |
Physiology |
Q |
196 |
QR |
Microbiology |
Q |
197 |
QR180 |
Immunology |
QR |
198 |
QR355 |
Virology |
QR |
199 |
R |
Medicine |
subjects |
200 |
R1 |
Medicine (General) |
R |
201 |
RA |
Public aspects of medicine |
R |
202 |
RA0421 |
Public health. Hygiene. Preventive Medicine |
RA |
203 |
RA1001 |
Forensic Medicine. Medical jurisprudence. Legal medicine |
RA |
204 |
RB |
Pathology |
R |
205 |
RC |
Internal medicine |
R |
206 |
RC0254 |
Neoplasms. Tumors. Oncology (including Cancer) |
RC |
207 |
RC0321 |
Neuroscience. Biological psychiatry. Neuropsychiatry |
RC |
208 |
RC1200 |
Sports Medicine |
RC |
209 |
RD |
Surgery |
R |
210 |
RE |
Ophthalmology |
R |
211 |
RF |
Otorhinolaryngology |
R |
212 |
RG |
Gynecology and obstetrics |
R |
213 |
RJ |
Pediatrics |
R |
214 |
RJ101 |
Child Health. Child health services |
RJ |
215 |
RK |
Dentistry |
R |
216 |
RL |
Dermatology |
R |
217 |
RM |
Therapeutics. Pharmacology |
R |
218 |
RS |
Pharmacy and materia medica |
R |
219 |
RT |
Nursing |
R |
220 |
RV |
Botanic, Thomsonian, and eclectic medicine |
R |
221 |
RX |
Homeopathy |
R |
222 |
RZ |
Other systems of medicine |
R |
223 |
S |
Agriculture |
subjects |
224 |
S1 |
Agriculture (General) |
S |
225 |
SB |
Plant culture |
S |
226 |
SD |
Forestry |
S |
227 |
SF |
Animal culture |
S |
228 |
SH |
Aquaculture. Fisheries. Angling |
S |
229 |
SK |
Hunting sports |
S |
230 |
T |
Technology |
subjects |
231 |
T1 |
Technology (General) |
T |
232 |
T201 |
Patents. Trademarks |
T1 |
233 |
TA |
Engineering (General). Civil engineering (General) |
T |
234 |
TC |
Hydraulic engineering. Ocean engineering |
T |
235 |
TD |
Environmental technology. Sanitary engineering |
T |
236 |
TE |
Highway engineering. Roads and pavements |
T |
237 |
TF |
Railroad engineering and operation |
T |
238 |
TG |
Bridge engineering |
T |
239 |
TH |
Building construction |
T |
240 |
TJ |
Mechanical engineering and machinery |
T |
241 |
TK |
Electrical engineering. Electronics Nuclear engineering |
T |
242 |
TL |
Motor vehicles. Aeronautics. Astronautics |
T |
243 |
TN |
Mining engineering. Metallurgy |
T |
244 |
TP |
Chemical technology |
T |
245 |
TR |
Photography |
T |
246 |
TS |
Manufactures |
T |
247 |
TT |
Handicrafts Arts and crafts |
T |
248 |
TX |
Home economics |
T |
249 |
U |
Military Science |
subjects |
250 |
U1 |
Military Science (General) |
U |
251 |
V |
Naval Science |
subjects |
252 |
V1 |
Naval Science (General) |
V |
253 |
VM |
Naval architecture. Shipbuilding. Marine engineering |
V |
254 |
Z |
Bibliography. Library Science. Information Resources |
subjects |
255 |
Z004 |
Books. Writing. Paleography |
Z |
256 |
Z665 |
Library Science. Information Science |
Z |
257 |
Z719 |
Libraries (General) |
Z |
258 |
ZA |
Information resources |
Z |
259 |
ZA4050 |
Electronic information resources |
ZA |
260 |
ZA4450 |
Databases |
ZA |
261 |
PL5051-5497 |
Malayan (Indonesian) languages |
PL |