Physics 57 Literature: history & criticism 7 Society & social sciences 6 Education 5 History 5 Medicine 5 Society & culture: general 4 Canada 3 History of education 3 History of religion 3 Language teaching & learning (other than ELT) 3 Political science & theory 3 Research & information: general 3 Sociology: family & relationships 3 Applied ecology 2 Business & management 2 Crime & criminology 2 Econometrics 2 European history 2 Finance 2 Gender studies, gender groups 2 General & world history 2 History of art / art & design styles 2 Human geography 2 Literary studies: general 2 Literary studies: plays & playwrights 2 Literature & literary studies 2 Painting & paintings 2 Philosophy 2 Political parties 2