Classification
000 - Computer science, information & general works
21
100 - Philosophy & psychology
84
120 - Epistemology, causation & humankind
5
140 - Specific philosophical schools
76
160 - Logic
1
170 - Ethics
20
200 - Religion
119
296 - Judaism
27
297 - Islam, Babism & Bahai Faith
29
300 - Social sciences
207
301 - Sociology & anthropology
75
304 - Factors affecting social behavior
20
320 - Political science
199
330 - Economics
84
333 - Economics of land & energy
33
340 - Law
53
350 - Public administration & military science
7
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
6
363 - Other social problems & services
28
364 - Criminology
6
370 - Education
39
380 - Commerce, communications & transportation
47
398 - Folklore
6
400 - Language
80
410 - Linguistics
45
414 - Phonology & phonetics
4
500 - Natural sciences & mathematics
11
520 - Astronomy & allied sciences
1
530 - Physics
7
540 - Chemistry & allied sciences
2
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
6
576 - Genetics & evolution
26
580 - Plants (Botany)
2
581 - Specific topics in natural history
10
590 - Animals (Zoology)
1
600 - Technology
32
610 - Medicine & health
47
612 - Human physiology
1
620 - Engineering & allied operations
21
630 - Agriculture & related technologies
14
658 - General management
3
700 - The arts; fine & decorative arts
175
720 - Architecture
21
770 - Photography, photographs & computer art
9
780 - Music
35
791 - Public performances
15
800 - Literature & rhetoric
189
900 - History & geography
more ...