This book provides valuable information about the actual motivations of volunteers and their relative importance to identify volunteers likely to serve for long periods of time, especially in health programs. It offers a framework that will be instrumental in the recruitment of appropriately motivated volunteers for long-term assignments, and details a screening process which will improve the cost-efficiency of health volunteer programs by considering the motivations of their volunteers. This is critical to managers involved in the recruitment, placement and retention of volunteers.The book opens up original avenues for understanding the factors that influence the sustainability of volunteering within communities. It will extend the reader's understanding of caring and compassion by suggesting a novel way of conceptualizing volunteering. The book makes a major contribution to the work design literature by identifying reduced volunteering as an unintended consequence of job enrichment, and to volunteering research in psychology and sociology by revealing new contextual influences on volunteering motives and role identities.