This book is about 95 pages long (not including some blank worksheets, index, table of contents.). The exercises at best will serve anyone who is attending the author's retreat. In comparison to other writing books, the price of this book is way to expensive for the very little it has to offer.
Perhaps an extreme beginner can find a few exercises helpful. The author's website has much more useful information than this book has. You'll also find almost all the info in the book in her site as well. I give it 3 stars, because with all book reviews, it is subjective to one's own expectations and background. I'm sure that this book would work best in tangent with attendance to the author's retreat, which allows for feedback and more intense study and practice of the exercises she illustrates in this book. However, her self-discovery questions at the end of each chapter, leaves one with more questions than answers.
Check out Martha Alderson's "Blockbuster Plots" for process and James V. Smith's "The Writer's little Helper" for help on craft instead. The issue with this book is that it is not insightful enough. There is not enough "meat" in it to substantiate it's price and usefulness.
Perhaps a "Revision" on this book with in depth discussion on craft and process would benefit this book. Buy it if you are attending her workshop. At best it will serve as a "light" workbook on revision. But for "self-learning" it is very lacking.
The biggest annoyance is that she refers you to reading another book on "Revision" from the start, because her book simply doesn't cover those basics (well that defeats my point in getting her book on revision...).
On the plus side, she has a nice list of "Books Recommended for Further Reading", although I had many of them already, it is helpful for someone who needs some guidance.
All in all, there are at least 2 basic tools within this book that are useful for revision. So the book does have some merit.