Tillie is a character from the children's book series created by M. E. Kerr. She is known for her adventurous spirit and curiosity, often finding herself in various situations that challenge her understanding of the world around her. In the stories, Tillie navigates friendships, family dynamics, and personal growth, making her relatable to young readers. Her experiences often convey important life lessons about empathy, resilience, and the value of self-discovery.