Politics & government 12 History 9 Nationalism 7 Social & cultural history 7 Sociology 7 Asian history 5 Humanities 5 European history 4 General & world history 4 Political parties 4 Political science & theory 4 City & town planning - architectural aspects 3 Geography 3 History of art / art & design styles 3 Landscape art & architecture 3 Literature & literary studies 3 Social & cultural anthropology, ethnography 3 Society & social sciences 3 Cultural studies 2 Environmental factors 2 Gender studies, gender groups 2 History of the Americas 2 International relations 2 Language: reference & general 2 Literary studies: fiction, novelists & prose writers 2 Literary theory 2 Literature: history & criticism 2 Modern history to 20th century: c 1700 to c 1900 2 Music 2 Regional studies 2