Harry Potter was written by a British author.
Harry Potter . Pictures , which has become the second highest-grossing film series of all time . Harry Potter is a British-American film series based on the Harry Potter novels by author J. K. Rowling . Harry Potter and the Deathly Hallows is the seventh and final novel of the Harry Potter series , written by British author J. K. Rowling . The Harry Potter series of fantasy novels by J. K. Rowling have become some of the most widely read works of children 's literature in history , with readers of all ages and in many countries .