Classification
120 - Epistemology, causation & humankind
100 - Philosophy & psychology
15
170 - Ethics
6
320 - Political science
5
900 - History & geography
5
200 - Religion
4
530 - Physics
4
300 - Social sciences
3
380 - Commerce, communications & transportation
3
400 - Language
3
140 - Specific philosophical schools
2
370 - Education
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
160 - Logic
1
333 - Economics of land & energy
1
340 - Law
1
350 - Public administration & military science
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
600 - Technology
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
791 - Public performances
1
800 - Literature & rhetoric
1