Classification
900 - History & geography
140
700 - The arts; fine & decorative arts
97
200 - Religion
94
300 - Social sciences
91
304 - Factors affecting social behavior
84
320 - Political science
79
610 - Medicine & health
69
140 - Specific philosophical schools
64
363 - Other social problems & services
55
370 - Education
52
000 - Computer science, information & general works
48
330 - Economics
47
333 - Economics of land & energy
46
301 - Sociology & anthropology
42
600 - Technology
37
380 - Commerce, communications & transportation
35
100 - Philosophy & psychology
33
297 - Islam, Babism & Bahai Faith
32
340 - Law
22
800 - Literature & rhetoric
20
296 - Judaism
19
400 - Language
19
551 - Geology, hydrology & meteorology
18
170 - Ethics
15
576 - Genetics & evolution
13
580 - Plants (Botany)
13
620 - Engineering & allied operations
12
581 - Specific topics in natural history
11
720 - Architecture
9
361 - Social problems & social welfare in general
7
398 - Folklore
6
410 - Linguistics
6
630 - Agriculture & related technologies
5
780 - Music
5
120 - Epistemology, causation & humankind
4
658 - General management
4
500 - Natural sciences & mathematics
3
770 - Photography, photographs & computer art
3
612 - Human physiology
2
360 - Social problems & services; associations
1
414 - Phonology & phonetics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
550 - Earth sciences
1
920 - Biography, genealogy & insignia
1