• 41 Cooperative Children's Book Center (CCBC)
• 6 Memorial Library
• 4 College Library
• 4 Information School Library

• 85 Books
• 7 Sound Recordings

• 7 Compact Discs

• 26 Magic
• 26 Schools
• 22 Wizards
• 21 Hogwarts School of Witchcraft and Wizardry (Imaginary organization)
• 16 History
• 16 Potter, Harry (Fictitious character)
• 14 Families
• 11 Family life
• 9 World War, 1939-1945
• 8 Granger, Hermione (Fictitious character)
• 8 Weasley, Ron (Fictitious character)
• 7 Friendship
• 7 Orphans
• 7 Witches
• 5 Adventure and adventurers
• 5 Fathers and daughters
• 5 Science fiction
• 5 Time travel
• 4 Brothers
• 4 Coming of age
• 4 Fantasy
• 4 Fate and fatalism
• 4 Identity
• 4 Monsters
• 4 Mystery and detective stories

• 19 Rowling, J. K
• 6 Almond, David, 1951-
• 6 GrandPré, Mary
• 6 Rowling, J. K.
• 4 Dale, Jim
• 4 Fritz, Klaus
• 2 Dowd, Siobhan
• 2 Gardner, Sally
• 2 McKay, Hilary
• 2 Morpurgo, Michael
• 2 Recorded Books, LLC
• 2 Rosoff, Meg, 1956-
• 2 Travers, P. L. (Pamela Lyndon), 1899-1996
• 1 Anderson, Jodi Lynn
• 1 Astrologo, Marina
• 1 Atta, Dean
• 1 Avi, 1937-
• 1 Balen, Katya
• 1 Balliett, Blue, 1955-
• 1 Barnett, Mac
• 1 Barter, Catherine, 1983-
• 1 Bartezzaghi, Stefano, editor
• 1 Benalcazar, Monica
• 1 Blackstone Audio, Inc.
• 1 Brilliance Audio (Firm)

• 80 English
• 6 German
• 3 Spanish
• 1 Chinese
• 1 French
• 1 Italian

• 23 London
• 19 London (England)
• 15 Great Britain
• 7 Angleterre
• 2 Grande-Bretagne
• 2 Inglaterra
• 2 Londres (Angleterre)
• 2 Moon
• 2 Northumberland (England)
• 1 Bristol
• 1 California
• 1 Cornwall (County)
• 1 Cornwall (England : County)
• 1 Cotswold
• 1 Delft (Netherlands)
• 1 Hayling Island
• 1 Hayling Island (England)
• 1 Isles of Scilly
• 1 Isles of Scilly (England)
• 1 Kansas
• 1 Kielder Water
• 1 Kielder Water (Angleterre)
• 1 Kielder Water (England)
• 1 Londres

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