This introduction presents an overview of the key concepts covered in the subsequent chapters of this book. The book focuses on the approaches adopted by different types of firms to the management of their energy resources. It investigates the energy management from the perspective of business strategy and the processes involved in adopting organizational and/or technological innovations. The book also attempts to explicate the following aspects of energy management decision making processes: the kinds of decisions that are involved in energy management; the major economic, behavioral, and organizational factors which influence these decisions; and the nature of the roles played by the key participants in energy management decision making. It also examines the factors which influence the emergence and evaluation of energy conservation investment ideas. The book then identifies the linkages between the business policy/planning and organizational and technological innovation literatures. It then presents the major characteristics of energy management in large multidivisional firms.