Don Edward Beck
Don Edward Beck (January 31, 1937 – May 24, 2022) was an American teacher, geopolitical advisor, and theorist who focused on applications of large scale psychology, including social psychology, evolutionary psychology, organizational psychology and their effect on human sociocultural systems. He was the co-author of the Spiral Dynamics theory, an evolutionary human development model adapted from the work of his mentor and colleague, developmental psychologist Clare W. Graves, Professor Emeritus in Psychology at Union College in New York, with whom he worked for over a decade.