J.K. Rowling is the author of the seven Harry Potter books, first published between 1997 and 2007. The adventures of Harry, Ron, and Hermione at Hogwarts School of Witchcraft and Wizardry have sold over 500 million copies, been translated into over 80 languages, and made into eight blockbuster films. Alongside the book series, she has written three short companion volumes for c...