Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
12
500 - Natural sciences & mathematics
4
530 - Physics
4
300 - Social sciences
3
700 - The arts; fine & decorative arts
3
900 - History & geography
3
140 - Specific philosophical schools
2
170 - Ethics
2
200 - Religion
2
600 - Technology
2
000 - Computer science, information & general works
1
160 - Logic
1
320 - Political science
1
333 - Economics of land & energy
1
340 - Law
1
400 - Language
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
610 - Medicine & health
1
770 - Photography, photographs & computer art
1