History 1,245 History and criticism 451 Politics and government 405 Philosophy 311 Criticism and interpretation 271 Spanish drama 191 Social aspects 180 Máis ... Social conditions 176 Education 146 Economic conditions 142 Spanish literature 140 Spanish language 134 Civilization 116 Motion pictures 101 PUBLICACIONES PERIODICAS 98 Law 95 Political science 92 Social sciences 89 Study and teaching 88 Antiquities 86 Research 79 Social life and customs 72 Economics 71 Motion picture plays, Spanish 66 Constitutional law 64 Science 64 Indians of South America 63 Economic history 62 Women 61 Description and travel 59 menos ...