In the category of project management books, this one is a little bit different, as its goal is to present an open framework and not a prescriptive model.
This book uses two perspectives to analyze the project context: the goal and the solution. Traditional project models work well in a context where both the goal and the solution are clearly identified, but an adaptive project framework (APF) is needed when these elements are not clearly known. In this case, the project should progress with discoveries and adaptation. After setting the initial context of the APF, the book presents its different phases: scope, plan, build and checkpoint. The dense material of the book is well presented with a clear style. Case studies allow the reader to get a better understanding on how to apply the proposed framework in the real life.