Classification
000 - Computer science, information & general works
500 - Natural sciences & mathematics
10
700 - The arts; fine & decorative arts
8
600 - Technology
6
658 - General management
6
380 - Commerce, communications & transportation
5
330 - Economics
4
333 - Economics of land & energy
4
576 - Genetics & evolution
3
140 - Specific philosophical schools
2
153 - Mental processes & intelligence
1
370 - Education
1
540 - Chemistry & allied sciences
1
620 - Engineering & allied operations
1
720 - Architecture
1
800 - Literature & rhetoric
1