This encyclopaedia provides key concepts of laws, theories, principles, effects, doctrines, hypotheses in psychology. Incomers a range of various Psychology disciplines such as clinical, developmental, educational, historical, occupational, personality, philosophical, physiological(human and animal), and social psychology. Importance is placed throughout on intersections with related disciplines such as sociology, neuroscience, and artificial intelligence. Schools of psychology, important practitioner nears, fundamental concepts, and empirical techniques are also treated in articles. Useful for strident as well as professionals.