What are some children's books with philosophical themes that can help young readers explore deeper questions about life and the world around them?

Some Children's Books with philosophical themes include "The Little Prince" by Antoine de Saint-Exupry, "Sophie's World" by Jostein Gaarder, and "The Phantom Tollbooth" by Norton Juster. These books can help young readers explore deeper questions about life and the world around them through engaging stories and thought-provoking ideas.