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.
DO NOT BUY. This is not a review of the book but the print that CB-India is selling. It is misprinted. Most of the book is typescript and not streaming systems. I have been trying to return the book but Amazon has been canceling the return. So very corrupt!