• 7 Memorial Library
• 1 MERIT Library
• 1 Steenbock Library
• 1 Verona Shelving Facility

• 23 Philosophers
• 7 History
• 6 Physicists
• 5 Philosophers, Ancient
• 5 Philosophy, Ancient
• 3 Authors, American
• 3 Chemists
• 3 Curie, Marie, 1867-1934
• 3 Einstein, Albert, 1879-1955
• 3 Hawking, Stephen, 1942-2018
• 3 Machiavelli, Niccolò, 1469-1527
• 3 Marx, Karl, 1818-1883
• 3 Mathematicians
• 3 Oppenheimer, J. Robert, 1904-1967
• 3 Wittgenstein, Ludwig, 1889-1951
• 2 Archimedes
• 2 Aristotle
• 2 Atomic bomb
• 2 Augustine, of Hippo, Saint, 354-430
• 2 Authors, Irish
• 2 Authors, Russian
• 2 Beckett, Samuel, 1906-1989
• 2 Berkeley, George, 1685-1753
• 2 Black holes (Astronomy)
• 2 Borges, Jorge Luis, 1899-1986

• 51 Digitalia (Firm)
• 22 Padilla Villate, José Antonio
• 12 Chaparro Martínez, Sandra
• 4 Corriente, Antón
• 1 Bello, Flavia
• 1 Farré Díaz, Paloma
• 1 Fontes, Marta
• 1 Fortes, Marta
• 1 Leṿi, Dafnah
• 1 Tena, Pedro
• 1 Tutor, Pilar

• 51 Spanish
• 8 English
• 1 Hebrew

• 6 Great Britain
• 4 Germany
• 3 France
• 3 Italy
• 3 United States
• 2 Austria
• 2 Poland
• 1 Algeria
• 1 China
• 1 Denmark
• 1 England
• 1 Greece
• 1 Hippo (Extinct city)
• 1 Netherlands
• 1 Russia (Federation)
• 1 Scotland

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