Darrell Addison Posey (1947-2001) was director of the Traditional Resource Rights Programme, Oxford Centre for the Environment, Ethics, and Society, and of the University of Oxford Centre for Brazilian Studies. He is the author of several books, including Beyond Intellectual Property: Toward Traditional Resource Rights for Indigenous Peoples and Local Communities and Indigenous Knowledge and Ethics: A Darrell Posey Reader.Michael J. Balick is vice president for research and training and director and philecology curator at the Institute of Economic Botany, The New York Botanical Garden. He is the author or editor of sixteen books, including Plants, People, and Culture: The Science of Ethnobotany (with Paul Alan Cox); Useful Palms of the World (with Hans T. Beck); Rainforest Remedies: One Hundred Healing Herbs of Belize (with Rosita Arvigo); and The Subsidy from Nature: Palm Forests, Peasantry, and Development on an Amazon Frontier (with Anthony B. Anderson and Peter H. May).