J.K. Rowling is a British author best known for creating the Harry Potter series, which has captivated millions of readers worldwide. The series, consisting of seven books, follows the journey of a young wizard, Harry Potter, and his friends as they navigate the challenges of growing up and battling dark forces. Rowling's work has not only led to a successful book franchise but also to a series of films, stage plays, and various merchandise. In addition to the Harry Potter series, she has written other works, including the Cormoran Strike detective novels under the pseudonym Robert Galbraith.