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.
Covers a wide range of topics. Beautiful art design, if on sale I'd get two and save one for Christmas. You'll be the talk over turkey. If they gave this book out free to all graduates it would increase the countries GDP