About J. K. Rowling J.K. Rowling is the author of the bestselling Harry Potter series of seven books, which have sold over 450 million copies, been translated into 79 languages, and made into eight blockbuster films. She has written three companion volumes in aid of charity: Quidditch Through the Ages and Fantastic Beasts and Where to Find Them (in aid of Comic Relief), and The Tales of Beedle the Bard (in aid of Lumos), as well as a screenplay inspired by Fantastic Beasts and Where to Find Them. J.K. Rowling has also collaborated on a stage play, Harry Potter and the Cursed Child Parts One and Two, which opens in London's West End in the summer of 2016. In 2012, J.K. Rowling's digital company Pottermore was launched, where fans can enjoy her new writing and immerse themselves deeper in the wizarding world. J.K. Rowling has written a novel for adult readers, The Casual Vacancy, and also writes crime novels under the pseudonym Robert Galbraith.