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 love reading these books to my children. We haven't found one that we didn't like. I always learn something new from the facts that the fiction is based on. We have also listened to some of the books on CD in the car and they are enjoyed by the whole family.
My son told me that my grandaughter was very much interested in this series of books so I ordered some to keep at my home for her to look at when she visited. With the weather and all I have not been able to see her yet but I'm sure she is going to love them. The books themselves are well constructed which pleases me and seems that they are going to be a pleasant surprise for her.