Book excerpt: This book covers the application of psychological principles and techniques to situations and problems of aviation. It offers an overview of the role psychology plays in aviation, system design, selection and training of pilots, characteristics of pilots, safety, and passenger behavior. It covers concepts of psychological research and data analysis and shows how these tools are used in the development of new psychological knowledge. The new edition offers material on physiological effects on pilot performance, a new chapter on aviation physiology, more material on fatigue, safety culture, mental health and safety, as well as practical examples and exercises after each chapter.