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 analyzes reviews to verify trustworthiness.
My four year old and my six year old (who reads very well) both find all of the Alistair books delightful. The colorful illustrations, the matter of fact expressions, and the quirky endings make them delightful to read and hear again and again -- which is what always happens at our house.