General Book 60 Knowledge Western 60 History 50 Philosophy 30 Mathematical economics 21 History and criticism 19 India 19 Alloys 18 Psychology 18 Sociology 17 Literature 16 English literature 15 Criticism and interpretation 14 Economics 14 Social Sciences 14 Biochemistry 13 Criticism 13 Human rights 13 Social conditions 13 Alienation (Social psychology) 12 American drama 12 Dissertations, Academic (Ph.D) 12 English fiction 12 Mathematics 12 Arts 11 Biography 11 General management 11 Statistics 11 Civilization 10 Globalization 10