To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
Great book...amazing illustrations...loved it very much. It has three books. simple language, great book for kids. definately worth its price. I don't know how the papeback is but online it is very nice.