J.K. Rowling's pen name "J.K." honors her grandmother Kathleen.

Hidden characters named "Harry" in the series.

J.K. Rowling received an Honorary Knighthood from Prince William.

Dobby's character was changed after a fan's request.

Hermione's S.P.E.W. cause didn't take off in the wizarding world.

"Hogwarts" exists as a hamlet in Scotland.