Explore the fascinating world of the human psyche with this concise guide to the fundamentals of psychology. Broken down by subject, from the psychology of relationships to how aging affects the brain, and from happiness to mental illness (and with everything in between), this book brings together all the major theorists and arguments you should know, ranging back in time to the ancient Greeks—who practiced a form of dream therapy 2500 years before Freud and Jung—all the way up to the present day.