History 7 Literature: history & criticism 6 Social & cultural history 5 Agricultural science 4 Law 4 Philosophy: epistemology & theory of knowledge 4 Political structure & processes 4 Biography: general 3 Cultural studies 3 History of the Americas 3 Literary studies: from c 1900 - 3 Migration, immigration & emigration 3 Poetry 3 Sociology 3 Ancient history: to c 500 CE 2 Anthropology 2 Asian history 2 Biography & True Stories 2 Biography: historical, political & military 2 Criminal law & procedure 2 Disability: social aspects 2 Film theory & criticism 2 History of art / art & design styles 2 History of medicine 2 Indigenous peoples 2 Jurisprudence & general issues 2 Literary theory 2 Literature & literary studies 2 Media studies 2 Military history 2