The third edition of The Essential Social Worker has been radically revised and updated and contains an entirely new chapter providing a clear outline of the historical and policy-related framework within which social work operates in areas of particular practice – child care, disability, mental health, old age and criminal justice. The Essential Social Worker defends the idea of a broadly based profession seeking to maintain disadvantaged people in the community. It bravely confronts the shallowness of many short-term fashions and argues that social work is a uniquely humane contributor to the achievement of welfare in the 1990s and beyond. A careful reading of The Essential Social Worker will ensure that the student gains an understanding of the role of social work in a complex urban society and develops an awareness of the debates which surround it. Social work is often subject to public criticism, but, as the author shows, it has continued to grow in scale and in influence throughout the 20th century and although its structure will continue to evolve, social work will remain essential in any society which regards itself as democratic and humane.