Classification
000 - Computer science, information & general works
410 - Linguistics
8
400 - Language
6
380 - Commerce, communications & transportation
5
100 - Philosophy & psychology
4
370 - Education
4
333 - Economics of land & energy
3
700 - The arts; fine & decorative arts
3
320 - Political science
2
600 - Technology
2
791 - Public performances
2
140 - Specific philosophical schools
1
330 - Economics
1
363 - Other social problems & services
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
581 - Specific topics in natural history
1
720 - Architecture
1
900 - History & geography
1