Classification
100 - Philosophy & psychology
300 - Social sciences
320 - Political science
55
200 - Religion
26
900 - History & geography
26
340 - Law
14
000 - Computer science, information & general works
13
330 - Economics
13
170 - Ethics
11
301 - Sociology & anthropology
10
600 - Technology
10
140 - Specific philosophical schools
9
333 - Economics of land & energy
9
370 - Education
9
700 - The arts; fine & decorative arts
9
620 - Engineering & allied operations
7
363 - Other social problems & services
5
380 - Commerce, communications & transportation
5
576 - Genetics & evolution
5
400 - Language
4
780 - Music
4
410 - Linguistics
3
581 - Specific topics in natural history
3
610 - Medicine & health
3
120 - Epistemology, causation & humankind
2
350 - Public administration & military science
2
500 - Natural sciences & mathematics
2
530 - Physics
2
630 - Agriculture & related technologies
2
800 - Literature & rhetoric
2
297 - Islam, Babism & Bahai Faith
1
360 - Social problems & services; associations
1
361 - Social problems & social welfare in general
1
364 - Criminology
1
520 - Astronomy & allied sciences
1
658 - General management
1
720 - Architecture
1
770 - Photography, photographs & computer art
1