Neuro-Linguistic Programming (NLP) is a study of human potential focusing on the interplay between language, thought, belief, and behavior, originally developed in the 1970s by Richard Bandler and John Grinder. It offers techniques for personal development, communication excellence, and overcoming negative beliefs, while emphasizing the importance of understanding internal and external experiences. NLP is applied in various fields including business, psychotherapy, and personal growth to improve communication and motivate individuals.