Categories

Category Fiction? # of Books # of Authors
Altered States 3 3
Biology 1 1
Business 13 13
Cognition 8 8
Critical Thinking 4 3
Culture 6 5
Current Era Fiction X 3 3
Design 2 2
Economics 6 5
Evolution 2 2
Fantasy X 11 7
Gothic X 3 3
History 9 9
Humor X 4 4
Life Hacking 2 2
Mathematics 3 1
Mythology 1 1
Period Fiction X 1 1
Politics 2 2
Science 4 4
Sci Fi X 26 17
Software 2 2
Thriller 1 1
Writing 3 3