Peter Raven is a nationally and internationally renowned conservationist who holds the position of Engelmann Professor of Botany at Washington University in St. Louis, Missouri. Dr. Raven also serves as Director of the Missouri Botanical Garden, where he has transformed the Garden into one of the world's leading plant conservation centers. Prior to arriving in St. Louis, Dr. Raven completed his undergraduate work at the University of California, Berkeley, secured a Ph.D. at the University of California, Los Angeles, and taught for nine years at Stanford University.