J.K. Rowling’s original Harry Potter series contains seven books.
The story begins with Harry Potter and the Philosopher’s Stone, published in the United Kingdom in 1997, and concludes with Harry Potter and the Deathly Hallows, published in 2007. The seven novels follow Harry through seven school years at Hogwarts, although the narrative structure and timeline extend beyond a simple school diary.
The seven-book count refers to Rowling’s main novel series. It does not include companion works such as Quidditch Through the Ages, Fantastic Beasts and Where to Find Them, or The Tales of Beedle the Bard. It also does not include Harry Potter and the Cursed Child, which is a stage play credited to Rowling, John Tiffany, and Jack Thorne.
Some editions split a single novel into multiple physical volumes, particularly in certain markets. That changes the number of printed volumes in an edition, not the canonical number of books in Rowling’s original series.