Classification
200 - Religion
900 - History & geography
20
320 - Political science
13
297 - Islam, Babism & Bahai Faith
9
300 - Social sciences
6
700 - The arts; fine & decorative arts
6
800 - Literature & rhetoric
5
296 - Judaism
4
301 - Sociology & anthropology
4
400 - Language
4
140 - Specific philosophical schools
3
304 - Factors affecting social behavior
3
340 - Law
3
380 - Commerce, communications & transportation
3
330 - Economics
2
600 - Technology
2
630 - Agriculture & related technologies
2
333 - Economics of land & energy
1
370 - Education
1
398 - Folklore
1
576 - Genetics & evolution
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
720 - Architecture
1
780 - Music
1