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.
Husband seen this book at eye doctors office. Since it was after the year of publication, looked on line for it. Arrived on time and appreciate getting it. But, was not packaged adequately and let seller know. He was more than accommodating with adjustment on price. Would probably purchase from again if carried item I was looking for. Thank you.