Neuro-Linguistic Programming (NLP) is defined as the study of the structure of subjective experience and how we organize our thoughts and mental processes. It involves language and how we use it, as well as our patterns of thought and behavior. NLP began in the 1970s when Richard Bandler and John Grinder studied therapists and experts to identify strategies and models of excellence in communication skills. NLP techniques are now used in various fields like coaching, sales, and self-development.