History 322,208 Politics and government 79,677 History and criticism 79,034 Social conditions 36,321 Criticism and interpretation 35,330 Law and legislation 35,014 Philosophy 33,308 more ... Foreign relations 32,443 Maps, Topographic 28,410 Social aspects 28,252 Economic conditions 28,123 Social life and customs 25,908 World War, 1939-1945 25,730 Description and travel 25,537 Women 23,684 Education 22,036 Civilization 21,208 Study and teaching 17,661 Management 17,230 Research 16,675 African Americans 16,337 Biography 16,304 Congresses 15,080 Architecture 14,955 English language 14,688 Art 14,608 Economic aspects 14,081 Music 13,808 Religious aspects 13,732 Finance 13,585 less ...