Harry Potter and the Sorcerer's Stone by J.K. Rowling — book slip

Harry Potter has never been the star of a Quidditch team, scoring points while riding a broom far above the ground. He knows no spells, has never helped to hatch a dragon, and has never worn a cloak of invisibility. All he knows is a miserable life with the Dursleys, his horrible aunt and uncle, and their abominable son, Dudley—a great big swollen spoiled bully. Harry's room is a tiny closet at the foot of the stairs, and he hasn't had a birthday party in eleven years. But all that is about to change when a mysterious letter arrives by owl messenger: a letter with an invitation to an incredible place that Harry—and anyone who reads about him—will find unforgettable.

First in the Harry Potter series.