This is perhaps the best young readers' books on evolution I have ever read. It is incredibly clear and concise, very easy to follow, and manages to convey a wide array of complex ideas in a very easy-to-understand format. The pictures are gorgeous, and the overall setup of the book is quite intuitive, while refraining from being too overwhelming or going into unnecessary details. I marveled again and again at the absolute clarity of this book; I can't make enough positive comments about this book, and I would recommend it as an introduction or a refresher for adult or child.