Distributed Cognition and Reality puts theory into practice, as the first book to show how to apply the Perceptual Cycle Model in aviation decision making. Based on case studies, critical incident interviews and live observations in cockpits, the authors develop a new way to understand how pilots and crews make decisions. This book will be useful for practitioners involved in accident and incident investigations and decision-making training, researchers and students within the disciplines of Aviation, Human Factors, Ergonomics, Engineering, Computer Science, and Psychology.