Classification
700 - The arts; fine & decorative arts
22
610 - Medicine & health
18
600 - Technology
12
140 - Specific philosophical schools
11
000 - Computer science, information & general works
10
333 - Economics of land & energy
7
616 - Diseases
7
900 - History & geography
7
620 - Engineering & allied operations
6
612 - Human physiology
5
100 - Philosophy & psychology
4
370 - Education
4
380 - Commerce, communications & transportation
3
330 - Economics
2
363 - Other social problems & services
2
400 - Language
2
500 - Natural sciences & mathematics
2
530 - Physics
2
570 - Life sciences; biology
2
576 - Genetics & evolution
2
580 - Plants (Botany)
2
720 - Architecture
2
780 - Music
2
320 - Political science
1
340 - Law
1
550 - Earth sciences
1
800 - Literature & rhetoric
1