Classification
000 - Computer science, information & general works
500 - Natural sciences & mathematics
100 - Philosophy & psychology
8
510 - Mathematics
5
300 - Social sciences
3
120 - Epistemology, causation & humankind
2
170 - Ethics
2
333 - Economics of land & energy
2
530 - Physics
2
600 - Technology
2
140 - Specific philosophical schools
1
160 - Logic
1
200 - Religion
1
301 - Sociology & anthropology
1
320 - Political science
1
330 - Economics
1
331 - Labor economics
1
340 - Law
1
363 - Other social problems & services
1
370 - Education
1
380 - Commerce, communications & transportation
1
400 - Language
1
576 - Genetics & evolution
1
620 - Engineering & allied operations
1
700 - The arts; fine & decorative arts
1
720 - Architecture
1
800 - Literature & rhetoric
1
900 - History & geography
1