Stephen Gliessman's complementary volumes, Agroecology: The Ecology of Sustainable Food Systems, Second Edition and Field and Laboratory Investigations in Agroecology, Second Edition are now available together for one low price! Completely revised, updated, and reworked, the second edition of Agroecology presents new data, readings, case studies, and options as well as more emphasis on topics such as the values, beliefs, and ethics of sustainable food systems. The new edition of Field and Laboratory Investigations in Agroecology facilitates hands-on, experimental learning that involves close observation, creative interpretation, and constant questioning of findings.