Harry Potter and the Deathly Hallows is a work.
Harry Potter and the Deathly Hallows is the seventh and final novel of the Harry Potter series , written by British author J. K. Rowling . J. K. Rowling . The books have gained worldwide attention , won multiple awards , and sold more than 400 million copies . They have become the best-selling book series in history and been the basis for a series of films over which Rowling had overall approval on the scripts and maintained creative control by serving as a producer on the final instalment .