Pretty, director of the Sustainable Agriculture Program at London's International Institute for Environment and Development, details the concepts of sustainable agricultural practices, drawing on 20 case studies and 50 projects in 28 countries to show the impact of sustainable practices. He looks at existing policy frameworks and institutional processes, and offers alternative policies to support the shift to greater self-reliance and sustainability. Published by Joseph Henry Press, 2101 Constitution Ave. N.W., Washington, DC 20418. Annotation copyright Book News, Inc. Portland, Or.