Classification
900 - History & geography
200 - Religion
107
700 - The arts; fine & decorative arts
58
320 - Political science
46
600 - Technology
42
620 - Engineering & allied operations
41
100 - Philosophy & psychology
38
363 - Other social problems & services
29
330 - Economics
24
333 - Economics of land & energy
23
140 - Specific philosophical schools
20
800 - Literature & rhetoric
18
000 - Computer science, information & general works
17
380 - Commerce, communications & transportation
16
297 - Islam, Babism & Bahai Faith
15
300 - Social sciences
13
576 - Genetics & evolution
13
340 - Law
11
530 - Physics
11
414 - Phonology & phonetics
10
610 - Medicine & health
9
170 - Ethics
8
301 - Sociology & anthropology
8
370 - Education
8
551 - Geology, hydrology & meteorology
8
296 - Judaism
7
410 - Linguistics
7
581 - Specific topics in natural history
6
500 - Natural sciences & mathematics
5
304 - Factors affecting social behavior
4
720 - Architecture
4
400 - Language
3
540 - Chemistry & allied sciences
3
780 - Music
3
230 - Christianity & Christian theology
1
231 - God
1
580 - Plants (Botany)
1
590 - Animals (Zoology)
1
630 - Agriculture & related technologies
1
650 - Management & auxiliary services
1
920 - Biography, genealogy & insignia
1