Thomas McNamara, in , presents the first comprehensive theory of human perception and consciousness based on the generally accepted principles of evolutionary psychology. This theory, building on the best evolutionary research, explains that just a few simple neurological changes in the primate brain account for human speech, self-consciousness and the creation of meaning out of experience. All primates can learn, but our species evolved a new instinct for learning, which makes childhood learning just as powerful as the other biological instincts found in all other primates. McNamara shows that children are genetically programmed to learn not just what to think, but how to think, shaping the preconscious process for creating meaning out of experience. However, because our environment has changed radically since our origin, this archaic form of consciousness has become a major block to human development and success. After explaining how we have all been programmed to preconsciously create meaning out of experience, McNamara shows how we can create a new and more successful way of thinking and feeling, resulting in a happier, more productive, stress free life.