"The terrain of the self is vast," notes renowned psychiatrist Arnold Ludwig, "parts known, parts impenetrable, and parts unexplored." How do we construct a sense of ourselves? How can a self reflect upon itself or deceive itself? Is all personal identity plagiarized? Is a "true" or "authentic" self even possible? Is it possible to really "know" someone else or ourselves for that matter? To answer these and many other intriguing questions, Ludwig...