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.
The situations are described with a simple, yet complete context of the challenge to be solved and simple actions that anyone can take to address the challenges. This is a book that every leader should be re-reading on a regular basis