ABSTRACT
Chapter 4 is the longest chapter in the book. The model it describes underlies much of our thinking, and we felt it important to explain it fully. Any theoretical model is only a partial representation of reality, and we always encourage our students and clients to treat models cautiously – use them when they make sense, and change them to suit the circumstances. But to make meaningful adaptations, you need to understand the thinking behind the model, to know what to change – hence we spend a lot of time explaining this in the next chapter. However, we do appreciate that this makes the length rather daunting, so this piece exists for the more dauntable of our readers, so that you can get a quick look-see as to what we are saying.
