I found "abstract NLP", specially their use of Chomsky's work, a bit of a voodoo. I have worked through Bandler and Grindger with a pencil for months, and eventually became disenchanted with the faux-science aspects of NLP.

This book is not about NLP, it is about that language is a key, about gule-governed behavior and about understanding and modeling of this behaviour.

The great idea is about using linguistic methods to understand and model a human's mind activities, which are based on language constructions.

NLP itself is just a trend, an attempt to sell these theories to the masses.