“This is a remarkable and unique volume that will likely start a paradigm shift in the behavioral sciences. Edited by the foremost leaders in their respective fields, David Sloan Wilson and Steven C. Hayes assembled a fascinating collection of chapters to derive a framework for understanding and changing human behavior. If Skinner and Darwin had been asked to write a book together after further developing their ideas, this would have been the one. Evolution and Contextual Behavioral Science will change the way you think about humans.”