An excellent read for getting one's thought-juices flowing. Pearce & Robinson put forward a very comprehensive model and theories to back it up. There are also the ubiquitous case studies, which of course prove that the model is accurate.
However... for a book with a very good index, as well as a name index, where are the citations? Yes, they cite a few articles for their case studies and occasionally provide a cite for another book, there are no real footnotes and no citation index at the back of the book. For a "venerated 10th edition" textbook this omission is quite telling.
What is that old snark... "The French follow no one, and no one follows the French!"