This book is a reasonable summary of the various options to consider when looking for so called "easy" ways to earn passive income. I found it to be most useful in highlighting the revenue potential of publishing an online book, affiliate marketing, monetising aspects of your blog, developing apps or creating a membership site. Jenna provides several important reality checks around what to expect in terms of time and effort and expected profitability. Less valuable if you already have experience in any of these areas because you will in all probability have already considered most of the options and either become successful or abandoned the venture.
I was grateful to find the book without padding, easy to read and digest in a single sitting. The author has done well to succinctly present a wide range of alternatives.