An early leader of the classical liberalism revival movement, Leonard Liggio is one of the most ardent defenders of the tenets of personal liberty in the world today. Liggio is Executive Vice President of the Atlas Economic Research Foundation, Distinguished Senior Scholar of the Institute for Humane Studies, and a research professor at George Mason University. He also serves on the Editorial Board of the American Journal of Jurisprudence in the Law School at Notre Dame, and he is past President of both the Mont Pelerin Society and the Philadelphia Society.