My 19 month old son is obsessed with this book. I hear Coco! Read! all day long, and if I don't comply there's a good chance a mini tantrum will follow. It even has him interested in going potty too. $11.40 is a little much to ask for this book, I got at a discount book store for half the price, but I am biting the bullet and bying the other Coco books in the series from Amazon for the same price as the excitment my son gets out of this book is priceless and I'm hoping for a little bit of break from Good Bye Diaper.