"Behaviorism" is a seminal work in psychology that introduces and explores the theory of behaviorism, a school of thought that emphasizes the importance of observable behavior over internal mental states. The book argues that psychology should be seen as a purely objective experimental branch of natural science, with its theoretical goal being the prediction and control of behavior. The author also discusses various aspects of behavior, including emotions and thought processes, in the context of this theory.

The 4038th greatest book of all time