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.
I'd personally give this book five stars, but I didn't buy it for me, I bought it for my daughter. While she does love pretty much all of Seuss' work, this one has LOTS of words and relatively few pictures and just isn't as interesting for a child.