Education 178 Sociology 133 Politics & government 80 Computer science 78 Environmental economics 76 Political economy 66 Public administration 64 Society & social sciences 63 Sustainability 61 Central government policies 60 Ecological science, the Biosphere 55 Artificial intelligence 53 Migration, immigration & emigration 53 Economics 50 Coins, banknotes, medals, seals (numismatics) 49 Development studies 49 Educational strategies & policy 49 Humanities 47 International relations 47 Social & cultural history 47 Environmental management 46 Manufacturing industries 46 History of medicine 45 History of science 45 Management of specific areas 45 Teaching of a specific subject 45 Cultural studies 43 Development economics & emerging economies 43 Human geography 43 Biochemical engineering 42