Subject Areas

No Code Name Parent Code
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