J.K. Rowling J.K. Rowling

J.K. Rowling reads to children at the 2010 White House Egg Roll. According to a new essay, her own experiences as a young student helped inform the Harry Potter character Dolores Umbridge. Chip Somodevilla/Getty Images hide caption

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Chip Somodevilla/Getty Images

Agatha Christie, seen here in 1946, removes a book from the shelf at Greenway House, the home from which Jennifer Grant bought the trunk six decades later at an estate sale. AFP/Getty Images hide caption

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AFP/Getty Images

Eimear McBride won the 2014 Baileys Women's Prize for Fiction for her debut novel, A Girl Is a Half-formed Thing. The novel was rejected by publishers for almost a decade. Stuart C. Wilson/Getty Images for Baileys/Diageo hide caption

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Stuart C. Wilson/Getty Images for Baileys/Diageo

Say it Ain't So! Harry Potter author J.K. Rowling now says that beloved characters Ron Weasley and Hermione Granger, played by Rupert Grint and Emma Watson (seen in 2011), shouldn't have wound up together. Adrian Dennis/AFP/Getty Images hide caption

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Adrian Dennis/AFP/Getty Images