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.
'Light on Yogas' is a brief (condensed) and effective guide to when yogas found in a natal chart will manifest, including reasons why they may never do so, and the degree to which they will manifest, depending on their strength. All is explained in simple language (as long as the reader has a good understanding of the basics of Vedic astrology) with many, many examples, all of which are fascinating and point up one or more lessons of interpretation. Marc Boney's book on Kindle are a little pricy considering they are short, but the kind of detailed information to be found in them is, in my experience, simply not available elsewhere, other than personal teaching.