Classification
700 - The arts; fine & decorative arts
720 - Architecture
780 - Music
900 - History & geography
9
300 - Social sciences
4
100 - Philosophy & psychology
3
330 - Economics
3
770 - Photography, photographs & computer art
3
200 - Religion
2
320 - Political science
2
600 - Technology
2
000 - Computer science, information & general works
1
410 - Linguistics
1
530 - Physics
1
580 - Plants (Botany)
1
620 - Engineering & allied operations
1
800 - Literature & rhetoric
1