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.
I was excited to get this book. Unfortunately , I returned it..The print is very light and small..Even with my thick reading glasses, I couldn't comfortably follow along..I'm thinking of the Kindle version.