Dr. David Diener is an Assistant Professor of Education at Hillsdale College and the Executive Director of the Alcuin Fellowship. Previously he spent fifteen years in K-12 private education, eleven of those in administration and eight as headmaster of classical Christian schools. He regularly provides consulting services and teacher training to classical schools and is the author of Plato: The Great Philosopher-Educator. He also serves as the series editor for Classical Academic Press’ series Giants in the History of Education and is an associate editor for the journal Principia: A Journal of Classical Education.