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.
Of the two Jamie Superfood cook books this is the weaker - not as many recipes that you flick through and say 'yes, yes, yes' to in your head. So, if you are choosing one of the two, choose the other one. That said, there are some great recipes in here.