Essential Evolutionary Psychology introduces students to the core theories, approaches, and findings that are the necessary foundations for developing an understanding of evolutionary psychology. It offers a sound, brief, and student friendly explication of how evolutionary theory has been and is applied in psychology. The book unpicks the very essence of human evolution, and how this knowledge is used to give evolutionary accounts of four of the central pillars of human behavior - cooperation, attraction, aggression, and family formation. It also covers evolutionary accounts of abnormal behavior, language and culture.