Oxford University Press and The National Association of Social Workers are proud to announce that 2009's completely updated, revised and critically-acclaimed 20th edition of this essential work is now available in paperback. The 400 articles in this four-volume set cover all aspects of social work. Topics include practice and interventions, social environments, social conditions and challenges, and social policy and history.

This new edition of the Encyclopedia contains extensive coverage of areas that have come to the fore since the 1995 publication of the 19th edition, including demographic changes from immigration, technology, the implications of managed care, faith-based assistance, evidence-based practice, gerontology, and trauma and disaster. Each thoughtful article is written and signed by a top academic or social work practitioner and includes a bibliography for further reading. Comprehensive and easy to use, all volumes are fully cross-referenced and include a complete index.