Philosophy 50 Environmentalist thought & ideology 28 Literature: history & criticism 26 Finance 24 History 24 Politics & government 24 Social & political philosophy 23 Ethics & moral philosophy 21 Society & culture: general 19 Sociology 19 Western philosophy, from c 1900 - 19 Asian history 18 Political science & theory 18 Social & cultural history 18 Society & social sciences 18 Education 16 History of medicine 16 Media studies 16 Psychology 15 Humanities 14 Literary studies: classical, early & medieval 14 Religion & beliefs 14 Social impact of environmental issues 14 The environment 14 Ecological science, the Biosphere 13 Economics 13 Business & management 12 Cultural studies 12 Literature & literary studies 12 Philosophy of religion 12