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.
My grandson had become fascinated with rainbows in a Rainbow Brite book. We read it too many time so I looked for another book that had rainbows in it. This book is advanced and my grandson doesn’t understand everything but he loves talking about the rainbows and rain.