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 analyzes reviews to verify trustworthiness.
This is my 9 month old baby's favorite book. He doesn't always seem to pay attention to the illustrations in baby books, but he stares intently at these images, particularly the faces. The artwork is charming.