J.K. Rowling as Robert Galbraith

Joanne Rowling, known by her pen name J. K. Rowling, is a British novelist and author of Harry Potter, a seven-volume series about a young wizard. Published from 1997 to 2007, the fantasy novels are the best-selling book series in history, with over 600 million copies sold. They have been translated into 84 languages and have spawned a global media franchise including films and video games.
She writes Cormoran Strike, an ongoing crime fiction series, under the alias Robert Galbraith.