In Peter Young's book you can “breath” his intent to help the reader to enlarge his/her map of the world. In Understanding NLP you will find deep illustrations of the real meaning of the most important presuppositions in NLP; you will also find many techniques using spacial anchors like the Disney strategy, the 6 Perceptual Position's Model, future pacing, meta positions, dissociation, ”
I believe that Young's work with this book is really to deeply understand and experience the idea of learning to change points of view and create more choices.