What is one example of David Foster embodying in his own book the lessons he teaches his readers about other nonfiction books?

Foster writes that the first three chapters alone should be enough for an author to set out the four 'Ps': problem, promise, programme, and platform. In his own book, he sets out the four within three chapters, too. He highlights the 'problem' in the prefatory material before the beginning of the actual text, highlighting the issue of untrustworthy nonfiction. He also sets out a 'promise' in this prefatory material and tells readers they will be capable of critical reading with his guidance. He then outlines his 'programme' and 'platform' by assuring readers that he will guide them through every step of critical reading and that he is uniquely positioned to do so because he is, in fact, a literature professor. Thus, the lesson he teaches...