Diaries, letters & journals c 1800 to c 1900 6 Ethics & moral philosophy 5 Literature: history & criticism 5 Philosophy 5 Western philosophy: c 1600 to c 1900 5 History of mathematics 4 Mathematics 4 Social & cultural history 4 20th century 3 Austria 3 Folk & traditional music 3 German 3 History: earliest times to present day 3 Literary studies: fiction, novelists & prose writers 3 Oral history 3 Rural communities 3 European history 2 History 2 Literary studies: poetry & poets 2 Modern history to 20th century: c 1700 to c 1900 2 Archaeology 1 Autobiography: general 1 Autobiography: historical, political & military 1 Baroque music (c 1600 to c 1750) 1 Biography: general 1 Biography: historical, political & military 1 Ceramic arts, pottery, glass 1 History of education 1 Individual artists, art monographs 1