Classification
000 - Computer science, information & general works
170 - Ethics
380 - Commerce, communications & transportation
610 - Medicine & health
370 - Education
4
140 - Specific philosophical schools
3
600 - Technology
3
100 - Philosophy & psychology
1
200 - Religion
1
320 - Political science
1
330 - Economics
1
361 - Social problems & social welfare in general
1
580 - Plants (Botany)
1
658 - General management
1
700 - The arts; fine & decorative arts
1
900 - History & geography
1