Classification
600 - Technology
700 - The arts; fine & decorative arts
900 - History & geography
100 - Philosophy & psychology
4
300 - Social sciences
4
500 - Natural sciences & mathematics
2
610 - Medicine & health
2
120 - Epistemology, causation & humankind
1
160 - Logic
1
170 - Ethics
1
340 - Law
1
530 - Physics
1
800 - Literature & rhetoric
1