The books in the Harry Potter series are :
Tales of Beetle The Bard - the new Harry Potter related book.
Fantastic Beasts and Where to Find Them
Book 1 : Harry Potter and the Sorcerer's Stone - where it all started.
Book 2 : Harry Potter and the Chamber of Secrets - Harry Potter discovers the secrets of the weapon used by Salazar Slytherin to purge Hogwarts of Muggle-borns.
Book 3 : Harry Potter and the Prisoner of Azkaban - A prisoner escapes from Azkaban.
Book 4 : Harry Potter and the Goblet of Fire - Three wizard schools compete in the Triwizard Tournament.
Book 5 : Harry Potter and the Order of the Phoenix - The prophecy that foretells of Harry Potter's triumph over Lord Voldemort.
Book 6 : Harry Potter and the Half-Blood Prince - Harry Potter discovers why Voldemort cannot be killed.
Book 7 : Harry Potter and the Deathly Hallows - Harry Potter seeks the Horcruxes and Deathly Hallows