Diane Tavenner is the cofounder and CEO of Summit Public Schools, a nationally recognized nonprofit and public-school network. Summit has been included in America's Best High Schools by U.S. News & World Report, America's Most Challenging High Schools by The Washington Post, and the world's Top 10 Most Innovative Companies in Education by Fast Company. A lifelong educator, Tavenner has undergraduate degrees in psychology and sociology from University of Southern California and a master's degree in administration and policy from Stanford University.