The main motivation for writing this book is to provide, at a minimum, a current and concise resource on accident causation, the accompanying theories and models, and their impact and importance on the investigation, analysis, and prevention of accidents. The primary goal of the book is to present the different methods of accident analysis and investigation and explain why it is important to consider the various theories of accident causation, system behavior, human factors, dynamic situations, and risk management. The goal is also to share knowledge and up-to-date information about these topics.