I gave this book to my son Noel who had just turned two years. I had a good look on the internet and was almost going to buy two at a time before discovering a few scanned images of pages of it on a blog! And what I've done well to it which is very comprehensive! Beautiful and humorous illustrations, many postures that keep coming very well and told everything as several short stories. The combos for long car trips in the morning when we get up for meals and also to help to calm down and fall asleep, all ending well lying in bed ... There are also two stories type "meditation" and postures of the benefits mentioned and the basics of breathing ... in short, perfect!
There still are several postures that my son can not achieve, but one thing at a time. He also enjoys watching mom make the effort;)
When the book format, I must admit that I was all the same a little worried because pages that are flexible. Indeed, this book is spiral, which facilitates good opening to consult during the postures. But the pages are "simply" plasticized and my son, say, before the books with great enthusiasm does not make them any harm. These are nevertheless very strong.