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.
I purchased this book a few years ago as a Christmas present for my nephew--to encourage him to read more; He an active boy who doesn't often settle down to read, so I chose a topic he loves, golf, and an author that an acquaintance recommended. Caleb said he loved it. It was a hit! Thanks, Matt Christopher.