Electronic resources (E-books) 157,498 Ver registros History 79,953 Ver registros General 48,965 Ver registros Politics and government 35,133 Ver registros History and criticism 33,796 Ver registros Piano music 21,535 Ver registros Social conditions 20,140 Ver registros Operas 19,015 Ver registros Social aspects 19,012 Ver registros SOCIAL SCIENCE 18,403 Ver registros Philosophy 18,321 Ver registros POLITICAL SCIENCE 18,235 Ver registros BUSINESS & ECONOMICS 17,907 Ver registros HISTORY 17,140 Ver registros Symphonies 15,558 Ver registros Music 14,676 Ver registros Artificial intelligence 14,392 Ver registros Criticism and interpretation 14,304 Ver registros Excerpts 13,193 Ver registros Social life and customs 12,550 Ver registros Education 12,156 Ver registros Jazz 11,620 Ver registros Orchestral music 11,245 Ver registros Women 10,916 Ver registros World War, 1939-1945 10,728 Ver registros Economic conditions 10,577 Ver registros Social surveys 10,426 Ver registros MEDICAL 10,118 Ver registros Reference 9,857 Ver registros Management 9,635 Ver registros TECHNOLOGY & ENGINEERING 9,575 Ver registros RELIGION 9,452 Ver registros Popular music 9,364 Ver registros Study and teaching 9,255 Ver registros Religion 9,153 Ver registros Application software 8,950 Ver registros SCIENCE 8,805 Ver registros Religious aspects 8,686 Ver registros LITERARY CRITICISM 8,665 Ver registros Christianity 8,548 Ver registros Civilization 8,514 Ver registros Scores 8,465 Ver registros Sonatas (Piano) 8,191 Ver registros Computers 7,662 Ver registros Political aspects 7,610 Ver registros Software engineering 7,386 Ver registros Families 7,271 Ver registros Science 7,188 Ver registros Research 7,064 Ver registros Economics 7,033 Ver registros African Americans 6,983 Ver registros Description and travel 6,979 Ver registros Art 6,927 Ver registros Physics 6,793 Ver registros Children 6,702 Ver registros Law and legislation 6,575 Ver registros String quartets 6,557 Ver registros Economic policy 6,555 Ver registros LANGUAGE ARTS & DISCIPLINES 6,524 Ver registros Psychology 6,467 Ver registros PHILOSOPHY 6,460 Ver registros Anthropology 6,448 Ver registros Economic history 6,305 Ver registros Economic aspects 6,272 Ver registros EDUCATION 6,263 Ver registros Psychological aspects 6,242 Ver registros LAW 6,207 Ver registros Sociology 6,106 Ver registros Mathematics 6,090 Ver registros Public Policy 6,028 Ver registros Diseases 5,916 Ver registros Organ music 5,915 Ver registros Holocaust, Jewish (1939-1945) 5,908 Ver registros Concertos (Piano) 5,875 Ver registros Computer communication systems 5,839 Ver registros Court records 5,826 Ver registros Jews 5,772 Ver registros Law 5,758 Ver registros Postwar reconstruction 5,666 Ver registros Motion pictures 5,522 Ver registros Political science 5,497 Ver registros Foreign relations 5,453 Ver registros Motets 5,418 Ver registros English language 5,344 Ver registros BIOGRAPHY & AUTOBIOGRAPHY 5,245 Ver registros HEALTH & FITNESS 5,160 Ver registros Race relations 5,131 Ver registros Church history 5,126 Ver registros Slavery 5,029 Ver registros Health 4,962 Ver registros PSYCHOLOGY 4,940 Ver registros Antiquities 4,913 Ver registros Finance 4,910 Ver registros Intellectual life 4,867 Ver registros Electrical engineering 4,811 Ver registros Essays 4,742 Ver registros English literature 4,730 Ver registros Medicine 4,727 Ver registros Manners and customs 4,668 Ver registros Agriculture 4,617 Ver registros