Os Guinness is an author and social critic. He was educated in England, receiving his undergraduate degree from the University of London and a DPhil from Oriel College, Oxford. He was a Guest Scholar at the Woodrow Wilson Center for International Studies and a Visiting Fellow at the Brookings Institution. From 1986-1989 he was the Executive Director of the Williamsburg Charter Foundation, one of the drafters of the Williamsburg Charter.
He is the founder and was the Senior Fellow of the Trinity Forum and most recently was Senior Fellow of the East West Institute in New York.
Some of his influential books include The Dust of Death; In Two Minds; The Gravedigger File; The American Hour; Dining with the Devil: The Megachurch Movement Flirts with Modernity; Fit Bodies, Fat Minds: Why Evangelicals Don’t Think; The Call; and Time for Truth: Living Free in a World of Lies.