J. K. Rowling
Joanne Rowling, also known by her pen name J. K. Rowling, is a British author and philanthropist. She wrote Harry Potter, a seven-volume children's fantasy series published from 1997 to 2007. The series has sold over 500 million copies, been translated into at least 70 languages, and spawned a global media franchise including films and video games. The Casual Vacancy (2012) was her first novel for adults. She writes Cormoran Strike, an ongoing crime fiction series, as Robert Galbraith.