I'm a huge NLP fan and i use it to make people do what you want them to do every day with it.
anyways, any NLP trainer will tell you that NLP constantly evolves, but they don't tell you that "constantly evolving" means that stuff is omitted so that Noobs don't get scared and stop paying for more training.
I received my NLP training and thought that something was amiss so i used the power of the internet to find every old NLP book i could to further my understanding and application abilities, this was one of those books.
The thing you'll find with old nlp books is that they spend volumes talking about techniques that current trainers spend maybe 10-30 minutes on. current trainers do this to overload you and get your money.
anyways, this book is awesome. it takes its time and has transcripts demonstrating parts of a huge methodology which goes like this Figure out their Model of reality (test), elicit a Strategy with TOTE (test), Utilize their behavior and VAKOG's against them (test), design a smooth Installation that they will most likely accept (test), then install your creation into their mind (final test). If they don't take your installation you use REFRAMING to force them to accept installation (final final test)....pure genius.
Most new trainers will tell you that there are a lot of steps that can be omitted to make this process simpler like Find Single problem, Elicit strategy, Test, Reframe to Install new idea, which does work, but in reality only saves you like 5 minutes where you can go through the old process and totally figure someone out and have the necessary ammo to totally bend their mind to your whim...or help them. :P
anyways, don't fall for scammer nlp trainer's who promise a "fast track" to persuasion. buy this book instead. its a solid read and it focuses on basic basic basic persuasion skills that you can use in any conversation to become a persuasion god.