I bought this for my 2-year-old son who is crazy about dinosaurs. I had previously purchased a lift-the-flap book on dinosaurs ('See inside: The world of dinosaurs') but found this inappropriate for my son's age as it has quite a lot of bloody pictures of dinosaurs devouring one another. This book, however, is perfect for toddlers: not too scary (no carnage / blood) but it does depict lots of different dinosaurs, their names, size, and what they eat. On every other page, you can fold out the page to see large images of the dinosaurs together so you can compare sizes and see them in their natural habitat. There's also a brief time line of which animal lived when, plus a life-size footprint of a T-rex so children can compare their own feet with that of a dinosaur. We've read this book loads and I find it interesting for adults, too!