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.
This book came in immaculate condition. Hardback book with book sleeve that I removed for safety because it's for my 2 year old son. My son loves this book so much, that he actually cares enough not to destroy it. His favorite book to read with his dad. Very much recommend. It does retain his retention.