Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
A robust synopsis. Especially enjoyed the key takeaways for each chapter. Links to and acknowledgments provided for the orginal book. Especially enjoyed the balanced critical thinking points provided in the Editorial Review at the end. Will read again and try the many specific practices provided.