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.
I bought this book for two different families with preschool children and they both love it! The story is meaningful, but not too long, with enough repetition to encourage learning. The story itself, encourages loving everyone. While getting a Valentine might be exciting, it's the love around you every day that is really important!