Classification
576 - Genetics & evolution
700 - The arts; fine & decorative arts
24
600 - Technology
21
000 - Computer science, information & general works
20
333 - Economics of land & energy
18
380 - Commerce, communications & transportation
14
330 - Economics
13
620 - Engineering & allied operations
13
900 - History & geography
13
363 - Other social problems & services
12
500 - Natural sciences & mathematics
9
140 - Specific philosophical schools
8
320 - Political science
8
340 - Law
5
580 - Plants (Botany)
5
610 - Medicine & health
5
720 - Architecture
5
100 - Philosophy & psychology
4
658 - General management
4
304 - Factors affecting social behavior
3
551 - Geology, hydrology & meteorology
3
630 - Agriculture & related technologies
3
170 - Ethics
2
370 - Education
2
530 - Physics
2
581 - Specific topics in natural history
2
410 - Linguistics
1
540 - Chemistry & allied sciences
1
612 - Human physiology
1
770 - Photography, photographs & computer art
1
800 - Literature & rhetoric
1
920 - Biography, genealogy & insignia
1