NLP stands for Neuro-Linguistic Programming. Neuro refers to neurology, Linguistic to language and Programming to how that neural language functions.

NLP is a Set of techniques proposed for modifying behavior in achieving self-improvement, self-management, and more effective interpersonal communications. It is based on the principle that every behavior has a scheme, and this scheme can be extrapolated, learned and taught. The guide criteria are knowing what would be useful and efficient.
NLP is created by Richard Bandler and John Grinder in California (USA) in the 1970s. NLP can treat problems like phobias, depression, tic disorders, psychosomatic illnesses, near-sightedness, allergy, common cold, and learning disorders.
Scientific reviews state that NLP is based on outdated metaphors of how the brain works that are inconsistent with current neurological theory and contain numerous factual errors. Reviews also found that all of the supportive research on NLP contained significant methodological flaws and that there were three times as many studies of a much higher quality that failed to reproduce the “extraordinary claims” made by Bandler, Grinder, and other NLP practitioners.

Even so, NLP has been adopted by some hypnotherapists and also by companies that run seminars marketed as leadership training to businesses and government agencies.