Classification
000 - Computer science, information & general works
100 - Philosophy & psychology
380 - Commerce, communications & transportation
700 - The arts; fine & decorative arts
320 - Political science
4
370 - Education
4
400 - Language
4
333 - Economics of land & energy
3
363 - Other social problems & services
3
600 - Technology
3
900 - History & geography
3
300 - Social sciences
2
301 - Sociology & anthropology
2
330 - Economics
2
410 - Linguistics
2
610 - Medicine & health
2
620 - Engineering & allied operations
2
780 - Music
2
800 - Literature & rhetoric
2
120 - Epistemology, causation & humankind
1
140 - Specific philosophical schools
1
170 - Ethics
1
340 - Law
1
500 - Natural sciences & mathematics
1
581 - Specific topics in natural history
1
590 - Animals (Zoology)
1
612 - Human physiology
1
630 - Agriculture & related technologies
1
720 - Architecture
1
791 - Public performances
1