Paul VII is not only an author but a certified scrum master with experience in international blue chip companies dating back to 1999. That experience includes leading projects for the BBC, General Electric, Oracle, BSkyB, HiT Entertainment (responsible for Angelina Ballerina, Bob the builder and other titles that you love watching with your kids or siblings but won't admit to) and Razorfish. These roles have all involved leadership on a wealth of mobile, internet TV and web software projects. He has played the role of portfolio manager, scrum master and in the earlier years, of team lead and technical lead. He has had the privilege of running projects and rolling out working practices in market leading organisations from start to finish.
This is a very good book. I like books in which the author explains real world situations, how they turned out, and what actions if taken might have improved the outcomes. This is real world information and I think it is valuable.