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 six year old read these books together. They really loved them! They laughed several times and enjoyed the overall story. It only took them a short time to read them, which was the only negative, but I'm still glad we got them.