This textbook ambitiously aims to and succeeds in providing this unity. Fathali M. Moghaddam and Rom Harré have designed a textbook brought together with additional voices that speak to the similarities and differences of these two seemingly distinctive domains. This bridge-building will encourage a new generation of undergraduate students studying psychology to more fully appreciate the real potential for the study of human behaviour, and as such it will represent a more provocative alternative to standard general psychology textbooks. It also support teaching in a host of courses, namely 2nd and 3rd courses on the conceptual and philosophical nature of psychology, social psychology, critical psychology and cognitive science. Selectively, it will also represent a very interesting and different choice for foundation level students too.