Psychology is the scientific study of mental processes, behavior, and emotions, encompassing both conscious and unconscious phenomena. As an academic discipline, psychology seeks to understand the structure and function of the brain, exploring key behavioral processes such as perception, cognition, emotion, intelligence, and attention. The field is expansive, with various sub-disciplines including abnormal psychology, educational psychology, forensic psychology, and cognitive psychology, among others. Beyond mental health and testing, the scope of psychology extends to domains such as education, employment, military, and social change. The book studies, analyzes and upholds the pillars of the field of psychology and its utmost significance in modern times. It attempts to understand the multiple branches that fall under the discipline and how such concepts have practical applications. In this book, constant effort has been made to make the understanding of the difficult concepts of psychology as easy and informative as possible, for the readers.