Unfortunaly each medal has two sides. NLP works effectively. Also it is impossible to protect this knowledge somehow to make its “elite” like a lot of people wants. If the person wishes to use NLP secretly for the bad purposes, only conscience can forbid making it. How to be protected from this type of application of NLP? The answer is paradoxical: by studying NLP. NLP uses all that effectively acts on people. I talked to many advertisers; most of them don’t know about any techniques of NLP and create advertising without it. For example, if they notice that the kind of a harmonious female body on a background of a Mercedes increases sales of motor vehicles, they will use that in advertise. NLP allows to receive the conscious control, to filter the received information and eliminate all unnecessary and harmful.