Classification
100 - Philosophy & psychology
140 - Specific philosophical schools
300 - Social sciences
380 - Commerce, communications & transportation
400 - Language
2
700 - The arts; fine & decorative arts
2
000 - Computer science, information & general works
1
301 - Sociology & anthropology
1
304 - Factors affecting social behavior
1
320 - Political science
1
330 - Economics
1
333 - Economics of land & energy
1
370 - Education
1
600 - Technology
1
610 - Medicine & health
1
720 - Architecture
1