This second volume, in a series looking at the social dimensions of mental illness, collates and critically examines the information currently available on social support as it impacts on mental health. The international team of contributors, each actively involved in both clinical and research work in this field, collectively covers the whole range of perspectives from biological mechanisms through to psychological and social theory. An overview of the latest published evidence and a description of the nature and origins of social support are followed by evidence from observational studies and specific interventions and trials. The text concludes with a summary which will act as a valuable resource for practitioners in their evaluation of social and psychological treatments, and should also serve to stimulate further research and intervention trials. Practitioners and researchers in psychiatry, psychology, and social work are certain to welcome this timely guide.