1 Harry Potter and the Sorcerer's Stone is Harry's entrance to Voldemort's reappearance at Hogwarts.

Harry Potter and the Chamber of Secrets is Harry's friend who was controlled by Voldemort's diary when he was a child and released the basilisk in the chamber of secrets.

Harry Potter and the Prisoner of Azkaban was visited by Harry's wronged godfather.

Harry Potter and the Goblet of Fire is the rebirth of Voldemort.

Harry Potter and the Order of the Phoenix is out of order. The Ministry of magic is not cooperating. Harry had nightmares and gradually understood Dumbledore's underground power.

Harry Potter and the Half-Blood Prince: Harry began to understand Voldemort's past, and finally Dumbledore died.

Harry Potter and the Deathly Hallows is a horcrux that Harry wandered around with two friends after Dumbledore's death to destroy Voldemort to maintain eternal life, and finally returned to Hogwarts to win the decisive battle.

This is my own summary. Please forgive me if there is any incompleteness. )