Classification
140 - Specific philosophical schools
500 - Natural sciences & mathematics
380 - Commerce, communications & transportation
5
600 - Technology
5
620 - Engineering & allied operations
5
700 - The arts; fine & decorative arts
5
900 - History & geography
5
340 - Law
4
576 - Genetics & evolution
4
000 - Computer science, information & general works
3
320 - Political science
3
363 - Other social problems & services
3
720 - Architecture
3
330 - Economics
2
333 - Economics of land & energy
2
610 - Medicine & health
2
100 - Philosophy & psychology
1
120 - Epistemology, causation & humankind
1
170 - Ethics
1
400 - Language
1
530 - Physics
1