Richard Bandler and John Grinder are the co-founders of Neuro-Linguistic Programming (NLP), a psychological approach that focuses on the connection between neurological processes, language, and behavioral patterns. They developed NLP in the 1970s by studying successful therapists and identifying effective communication and change techniques. Their work emphasizes the idea that individuals can change their thoughts and behaviors by altering their language and mental frameworks. Bandler and Grinder's methods have been applied in various fields, including therapy, coaching, and personal development, making NLP a popular tool for improving communication and achieving personal goals.