Classification
100 - Philosophy & psychology
300 - Social sciences
320 - Political science
600 - Technology
620 - Engineering & allied operations
900 - History & geography
330 - Economics
5
370 - Education
4
380 - Commerce, communications & transportation
4
780 - Music
4
400 - Language
3
410 - Linguistics
3
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
340 - Law
2
630 - Agriculture & related technologies
2
140 - Specific philosophical schools
1
301 - Sociology & anthropology
1
500 - Natural sciences & mathematics
1
530 - Physics
1
576 - Genetics & evolution
1
658 - General management
1
720 - Architecture
1
770 - Photography, photographs & computer art
1