This is a book about different types of hearts or personalities. Each spread has one. There is a wild heart, a police heart, a golden heart and so on. This book has the ability to talk about complex ideas in a simple, playful and still deep way. The illustrations are clear and poetic, doing a good job complementing the text. This book can be engaging for both girls and boys, children and grown-ups. My 6-year-old boy likes it a lot. I would buy it for anyone over six. It has everything to be a hit.