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.
I did not learn anything from this book. I kept waiting for the actionable items that it promised but they never came. It also has a weird choppy flow to it that made it hard to read. I am no expert but I did work for over 6 years in ALM for a midsize bank, so take my review with a grain of salt. Bottom line is: I wish I could get my money back (I missed the return window)