The Babysitter's Club is a popular children's book series created by Ann M. Martin. It follows a group of young girls who start a babysitting business in their hometown of Stoneybrook, Connecticut. Each book typically focuses on the experiences and challenges faced by the club members as they navigate friendships, family issues, and their babysitting jobs. The series features a diverse cast of characters, including Kristy Thomas, Mary Anne Spier, Claudia Kishi, and Stacey McGill. The books emphasize themes of teamwork, responsibility, and the importance of friendship, making them relatable and engaging for young readers.