The book presents a comprehensive updated approach to current psychological knowledge to facilitate a rapid review of the major subjects in psychology in medicine and to stimulate further detailed study. The book is divided into five Parts. Part One provides an elaborate background of the various sub-disciplines of psychology, the various theories and schools of thoughts encompassing them. Part Two discusses the links between the physical and psychological state of being human. Part Three elucidates the basic psychological processes that shape human cognizance. Part Four talks about the different factors which influence the human psyche. Part Five discusses the various aspects of clinical psychology and their implications for the physical well-being of people. This volume distinguishes itself in providing a concise, clear understanding of most of the basic topics of psychology that are essential to all students of general psychology, but particularly to medical and nursing students, and to postgraduate trainees in psychiatry.