Classification
340 - Law
600 - Technology
700 - The arts; fine & decorative arts
6
900 - History & geography
5
333 - Economics of land & energy
3
380 - Commerce, communications & transportation
3
620 - Engineering & allied operations
3
320 - Political science
2
500 - Natural sciences & mathematics
2
000 - Computer science, information & general works
1
100 - Philosophy & psychology
1
300 - Social sciences
1
330 - Economics
1
530 - Physics
1
540 - Chemistry & allied sciences
1
580 - Plants (Botany)
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1
780 - Music
1
791 - Public performances
1
800 - Literature & rhetoric
1