Outsourcing Information Systems brings together the papers, that combined, contribute a detailed understanding of how outsourcing of IS and back office functions has developed, and is likely to develop, the theories that can be applied to this field of study, the mistakes committed and learning achieved, and insights into what really does work. Leslie Willcocks and Mary Lacity have carefully selected in-depth analyses of the major forms of sourcing and related managerial practices from rigorously researched and objective sources based in the academic literature to provide a comprehensive and up-to-date resource for researchers and practitioners both.