Classification
100 - Philosophy & psychology
120 - Epistemology, causation & humankind
900 - History & geography
170 - Ethics
7
200 - Religion
6
320 - Political science
6
000 - Computer science, information & general works
5
700 - The arts; fine & decorative arts
5
800 - Literature & rhetoric
5
140 - Specific philosophical schools
4
300 - Social sciences
4
530 - Physics
4
160 - Logic
3
333 - Economics of land & energy
3
340 - Law
3
410 - Linguistics
3
500 - Natural sciences & mathematics
3
600 - Technology
3
363 - Other social problems & services
2
400 - Language
2
520 - Astronomy & allied sciences
2
920 - Biography, genealogy & insignia
2
301 - Sociology & anthropology
1
330 - Economics
1
370 - Education
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
610 - Medicine & health
1
620 - Engineering & allied operations
1
720 - Architecture
1