John Grinder is an American linguist and co-founder of Neuro-Linguistic Programming (NLP), a psychological approach that focuses on the connection between neurological processes, language, and behavioral patterns. Born on January 10, 1940, he has contributed significantly to the fields of communication, personal development, and psychotherapy. Grinder collaborated with Richard Bandler in the 1970s to develop NLP, which aims to model successful behaviors and thought patterns. His work has influenced various disciplines, including coaching, education, and therapy, making NLP a popular tool for personal and professional growth.