Classification
100 - Philosophy & psychology
340 - Law
700 - The arts; fine & decorative arts
140 - Specific philosophical schools
2
320 - Political science
2
120 - Epistemology, causation & humankind
1
170 - Ethics
1
330 - Economics
1
333 - Economics of land & energy
1
363 - Other social problems & services
1
581 - Specific topics in natural history
1
770 - Photography, photographs & computer art
1