This book is important because it reveals what is needed to implement an advanced form of project management and how that should be accomplished. It emphasizes the significance of "done", i.e., what does "done" mean, what does it look like, how do we get there, and how do we know when we have got there. Many people know this proposition as the "characteristics of completion".
Some parts of the book tend to be difficult to follow and, we feel, could be edited for technical consistency and simplicity. The novice reader could easily get lost in the intricacies of the book's framework. Nevertheless the book does provide sound advice at an in-depth level. That is, at a level that the experienced reader can use to implement the author's recommendations on an actual project.
R. Max Wideman