Michael Graetz is a professor at Columbia Law School and an expert on national and international tax law. Before Columbia, he was a professor at the University of Southern California, the University of Virginia School of Law, and most recently, Yale Law School. He has also held several positions in the federal government, including deputy assistant secretary for tax policy, the assistant to the secretary, and special counsel for the Department of Treasury. He was recognized for his lifetime achievement in the study of the theory and practice of public finance, and was awarded the National Tax Association’s Daniel M. Holland Medal accordingly. He has been chosen a John Simon Guggenheim Memorial Fellow and elected to the American Academy of Arts & Sciences.His recent scholarship has focused on U.S. legal history and issues resultant of economic inequality. He is a prolific writer whose articles have appeared in notable such as the National Tax Journal, the Yale University Press, the MIT Press, the Harvard Law and Policy Review, and more. His latest book, The Wolf at the Door: The Menace of Economic Insecurity and How to Fight It, explores realistic policy solutions and strategies that would lead to more overall economic security. He has also testified as an expert witness before the U.S. House of Representatives Committee on Ways and Means and the Senate Committee on Finance on a wide range of tax matters.