• 26 MERIT Library
• 15 College Library
• 15 Cooperative Children's Book Center (CCBC)
• 10 Memorial Library
• 2 Information School Library

• 103 Books
• 13 Sound Recordings

• 7 Compact Discs

• 64 Schools
• 60 Wizards
• 52 Hogwarts School of Witchcraft and Wizardry (Imaginary organization)
• 46 Potter, Harry (Fictitious character)
• 26 Weasley, Ron (Fictitious character)
• 25 Granger, Hermione (Fictitious character)
• 15 Fairies
• 13 Fantasy
• 11 Boarding schools
• 8 Good and evil
• 8 History
• 8 Hogwarts School of Witchcraft and Wizardry (Imaginary place)
• 8 Social life and customs
• 8 Supernatural
• 7 Kidnapping
• 7 Witches
• 6 Coming of age
• 6 Mothers and sons
• 5 Paranormal fiction
• 5 Siblings
• 4 Apprentices
• 4 Fowl, Artemis (Fictitious character)
• 4 Friendship
• 4 Knights and knighthood

• 47 Rowling, J. K
• 18 GrandPré, Mary
• 18 Rowling, J. K.
• 10 Colfer, Eoin
• 10 Dale, Jim
• 7 Bray, Libba
• 6 hoopla digital
• 4 Fritz, Klaus
• 4 J. K., Rowling
• 4 Travers, P. L. (Pamela Lyndon), 1899-1996
• 3 Clare, Cassandra
• 3 Martín Azofra, Nieves
• 3 Morris, Gerald, 1963-
• 3 Muñoz García, Adolfo
• 3 Scott, Michael, 1959-
• 3 Shepard, Mary, 1909-2000
• 3 Stroud, Jonathan
• 2 Brennan, Sarah Rees
• 2 Cooper, Susan, 1935-
• 2 Matsuoka, Yūko
• 2 Moriarty, Jaclyn
• 2 Selznick, Brian
• 1 Astrologo, Marina
• 1 Bachmann, Stefan, 1993-
• 1 Bartezzaghi, Stefano, editor

• 87 English
• 10 Spanish
• 6 German
• 2 Japanese
• 2 Russian
• 1 Chinese
• 1 French
• 1 Italian
• 1 Tibetan

• 15 London (England)
• 11 London
• 10 Angleterre
• 7 Great Britain
• 4 Inglaterra
• 3 Cambridge (England)
• 2 California
• 2 Cambridge
• 2 Cornwall (County)
• 2 Cornwall (England : County)
• 1 Alcatraz (Calif.)
• 1 Alcatraz Island
• 1 Alcatraz Island (Calif.)
• 1 Californie
• 1 Cornwall (Angleterre)
• 1 Czech Republic
• 1 Egypt
• 1 Oxford (England)
• 1 Prague (Czech Republic)
• 1 Wales

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