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 daughter loves the Nancy Drew series and the fact that they're eligible for AR points. I liked that I could buy the series for the Kindle and it automatically figured out which we owned, so I didn't re purchase those. Just wish it loaded them in order.