Designed for the undergraduate students of psychology, this compre-hensive text presents the fundamental principles and concepts of psychology. It discusses in detail various human behavioural patterns. The book describes the nature, goals and different schools of psychology. It explains various methods of psychological research such as experimental, observation, interview, questionnaire and case-study methods. Besides describing the biological bases of human behaviour, it examines different types of psychological tests which are conducted to differentiate one individual from another. This student-friendly book also elaborates the processes of learning and memory, the nature and types of memory and other important aspects of human behaviour such as motivation, emotion and intelligence. The James–Lange and Cannon–Bard theories of emotion, psychometric theory and cognitive theory of intelligence are also thoroughly dealt with. Finally, different concepts of personality and techniques of assessment of personality are explained. Key Features : • Includes a number of figures and illustrations to clarify the concepts. • Gives interesting facts and health tips. • Provides chapter-end exercises for practice. • Offers several examples for easy understanding of the subject matter.