Classification
100 - Philosophy & psychology
576 - Genetics & evolution
900 - History & geography
26
300 - Social sciences
12
320 - Political science
12
140 - Specific philosophical schools
6
200 - Religion
6
330 - Economics
6
301 - Sociology & anthropology
5
600 - Technology
5
370 - Education
4
700 - The arts; fine & decorative arts
4
400 - Language
3
410 - Linguistics
3
581 - Specific topics in natural history
3
620 - Engineering & allied operations
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
340 - Law
2
363 - Other social problems & services
2
500 - Natural sciences & mathematics
2
540 - Chemistry & allied sciences
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
296 - Judaism
1
297 - Islam, Babism & Bahai Faith
1
304 - Factors affecting social behavior
1
350 - Public administration & military science
1
520 - Astronomy & allied sciences
1
530 - Physics
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
658 - General management
1
720 - Architecture
1
780 - Music
1
800 - Literature & rhetoric
1
920 - Biography, genealogy & insignia
1