Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
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 analyzed reviews to verify trustworthiness.
I usually NEVER leave a review, but wow. I am just blown away by how every single page is so well thought out and all the illustrations...and for the price! I wish there was a smaller version for me to carry around at all times!!