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.
You probably are thinking about buying this because of "Those Darn Squirrels." You're probably under pressure from your young ones. While I highly recommend Those Darn Squirrels I don't really recommend this book. It's OK, but not really worth it.