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Colbert, David. The Magical Worlds of Harry Potter

Fraser, Lindsey. Conversations with J.K. Rowling

Kronzek, Allan Zola, and Elizabeth Kronzek. A Sorcerer's Companion: A Guide to the Magical World of Harry Potter

Rowling, J. K. Fantastic Beasts and Where to Find Them

——— Quidditch Through the Ages

Schafer, Elizabeth D. Beacham's Sourcebook for Exploring Harry Potter