Classification
000 - Computer science, information & general works
6
100 - Philosophy & psychology
3
120 - Epistemology, causation & humankind
2
140 - Specific philosophical schools
170 - Ethics
2
200 - Religion
2
301 - Sociology & anthropology
1
333 - Economics of land & energy
3
340 - Law
1
363 - Other social problems & services
2
400 - Language
1
500 - Natural sciences & mathematics
2
530 - Physics
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
2
610 - Medicine & health
2
700 - The arts; fine & decorative arts
3
800 - Literature & rhetoric
1
900 - History & geography
1