This four-volume book examines, through multiple and cross-discipline perspectives, the science and practice of not-for-profit organisations. These organisations have drawn considerable attention and witnessed extensive growth as they engage in delivering public services to society. And are increasingly pressured to balance business with social goals, inherent idiosyncratic features with management creativity, structural limitations with operational flexibility, and ethical boundaries with pragmatism; all with scarce resources but abundant determination. The first volume explores the opportunities and challenges of non-profit organisations in the contemporary environment, elucidating current and future issues in the field, setting strategic directions, and presenting sector-wide examples and best practices. The second volume explores contextual aspects relating to the economy and industries. The third volume presents social and ethical aspects, as well as matters of sustainability, accountability and the overall wellbeing of society. The fourth and final volume examines structures and models, with an emphasis on technology.