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 gave this book 5 stars because I could not give it 6. From start to finish I could not put it down. Well researched, funny, informative, uplifting and great techniques for learning. A must read for anyone wanting to improve their life. I have already started on the curiosity questions and enjoying the exercise