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.
My boy loves this book. It is a great way for learning the inside of the human body. It explains everything in a very fun and interesting way. Will recommend it to any kid that likes to know how things work.