Os Guinness was born in China and educated in England. He did undergraduate studies at the University of London and postgraduate work at Oriel College, Oxford, where he earned a D.Phil in the social sciences. Formerly a guest scholar at the Woodrow Wilson Center for International Studies and Visiting Fellow at the Brookings Institution, Os is currently Senior Fellow at the Trinity Forum in McLean, Virginia. Widely traveled, he has written or edited more than twenty books, including "The American Hour," "Time for Truth, "and "The Call," He makes his home in northern Virginia.