B.F. Skinner was a prominent American psychologist and behaviorist, renowned for his pioneering research in operant conditioning. Born in 1904, Skinner's work emphasized the influence of environmental factors on behavior, challenging traditional notions of free will. He developed the Skinner Box, an apparatus to study animal behavior, and introduced concepts such as reinforcement and punishment. Skinner's influential books, including "Walden Two" and "Beyond Freedom and Dignity," explored the implications of behavioral psychology for society. His theories have had a profound impact on education, therapy, and understanding human and animal behavior. Skinner passed away in 1990, leaving a lasting legacy.