Classification
200 - Religion
320 - Political science
85
100 - Philosophy & psychology
84
900 - History & geography
74
330 - Economics
55
300 - Social sciences
34
170 - Ethics
33
301 - Sociology & anthropology
33
700 - The arts; fine & decorative arts
31
140 - Specific philosophical schools
26
581 - Specific topics in natural history
20
340 - Law
19
363 - Other social problems & services
16
297 - Islam, Babism & Bahai Faith
14
530 - Physics
13
000 - Computer science, information & general works
12
333 - Economics of land & energy
11
600 - Technology
11
800 - Literature & rhetoric
10
370 - Education
9
120 - Epistemology, causation & humankind
8
380 - Commerce, communications & transportation
8
400 - Language
8
610 - Medicine & health
8
410 - Linguistics
6
576 - Genetics & evolution
6
630 - Agriculture & related technologies
6
296 - Judaism
5
500 - Natural sciences & mathematics
5
551 - Geology, hydrology & meteorology
5
304 - Factors affecting social behavior
4
361 - Social problems & social welfare in general
4
398 - Folklore
4
364 - Criminology
3
780 - Music
3
231 - God
2
360 - Social problems & services; associations
2
580 - Plants (Botany)
2
620 - Engineering & allied operations
2
720 - Architecture
2
160 - Logic
1
234 - Salvation & grace
1
520 - Astronomy & allied sciences
1
770 - Photography, photographs & computer art
1
920 - Biography, genealogy & insignia
1