Classification
200 - Religion
301 - Sociology & anthropology
300 - Social sciences
51
900 - History & geography
45
100 - Philosophy & psychology
31
320 - Political science
27
700 - The arts; fine & decorative arts
20
140 - Specific philosophical schools
19
610 - Medicine & health
15
297 - Islam, Babism & Bahai Faith
14
370 - Education
11
600 - Technology
10
304 - Factors affecting social behavior
9
380 - Commerce, communications & transportation
9
160 - Logic
8
340 - Law
8
170 - Ethics
7
330 - Economics
7
000 - Computer science, information & general works
6
233 - Humankind
6
400 - Language
6
780 - Music
6
363 - Other social problems & services
5
333 - Economics of land & energy
4
398 - Folklore
4
581 - Specific topics in natural history
4
230 - Christianity & Christian theology
3
530 - Physics
3
296 - Judaism
2
361 - Social problems & social welfare in general
2
410 - Linguistics
2
620 - Engineering & allied operations
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
227 - Epistles
1
231 - God
1
291 - [Unassigned]
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
770 - Photography, photographs & computer art
1
891 - East Indo-European & Celtic literatures
1