Neuro linguistic programming (N.L.P.) is an extremely valuable utensil for changing the subconscious associations made by the mind when they negatively affect our behavior and life. In the 1970s Richard Bandler and John Grinder created this method to help people change undesirable behaviors without having to go through a lengthy road of unpleasant memories to determine the cause. This method came about by modeling selected geniuses such as Virginia Satir, Fritz Perls and Milton Erickson
Some might consider it an unsubstantiated method by science but its effectiveness speaks for its self. Dr Bandler is a consultant to many of the Fortune 500 Companies, the US Military, US Intelligent Agencies, e.t.c.
John Grinder has authored over 14 books on transformational grammar and family therapy. Bandler and Grinder created Neuro-Linguistic Programming as a means to investigate and replicate extreme human excellence.
Now the techniques of NLP are not only used by excellent personal development life coaches but also by politicians, the media, company executives, people in sales and even in education. Personally I think it would be more useful in the hands of health care professionals who could use it to help people improve their health and life instead of using it to sale things and ideas or to pick up women.

Here are some links for a better explanation as to what NLP is: