Harry Potter and the Sorcerer's Stone:
* Chapter 5, "Diagon Alley": Harry first receives the cloak from his father's belongings.
* Chapter 12, "The Mirror of Erised": Harry uses the cloak to sneak past Fluffy, the three-headed dog, to see the Sorcerer's Stone.
* Chapter 17, "The Man with Two Faces": Harry uses the cloak again to avoid Snape and Dumbledore while searching for the stone.
Harry Potter and the Chamber of Secrets:
* Chapter 11, "The Dueling Club": Harry uses the cloak to avoid getting caught by Filch after attending the Dueling Club.
* Chapter 13, "The Very Secret Diary": Harry uses the cloak to sneak into the Chamber of Secrets, where he fights the Basilisk.
Harry Potter and the Prisoner of Azkaban:
* Chapter 9, "The Shrieking Shack": Harry uses the cloak to follow Sirius Black and the other escaped prisoners.
* Chapter 12, "The Patronus": Harry uses the cloak to avoid Snape while searching for the Time-Turner.
Harry Potter and the Goblet of Fire:
* Chapter 15, "The Triwizard Tournament": Harry uses the cloak to escape from Hagrid's cabin and sneak into the Forbidden Forest.
Harry Potter and the Order of the Phoenix:
* Chapter 14, "The Ministry of Magic": Harry uses the cloak to escape from the Ministry of Magic after fighting Bellatrix Lestrange.
Harry Potter and the Deathly Hallows:
* Chapter 12, "The Ghoul in the Graveyard": Harry uses the cloak to evade the Death Eaters while searching for a Horcrux.
* Chapter 23, "The Battle of Hogwarts": Harry uses the cloak to sneak around Hogwarts, avoiding the Death Eaters and protecting Neville Longbottom.
These are just some of the key instances where Harry Potter used the Invisibility Cloak throughout the series. It's a powerful and versatile magical object, and Harry used it to his advantage on numerous occasions.