Madeline And The Bad Hat by Ludwig Bemelmans

In this charming tale, the mischievous son of the Spanish ambassador moves next door to a Parisian boarding school, causing chaos and mischief for the twelve little girls who live there. His antics, ranging from harmless pranks to more serious misdeeds, initially earn him the nickname "the bad hat." However, through a series of events and a lesson in kindness, the young boy learns the importance of friendship and empathy, ultimately transforming his behavior and winning over the hearts of his neighbors.

Purchase from Bookshop.org