Os has written or edited more than thirty books, including The Call, Time for Truth, Unspeakable, A Free People’s Suicide, and The Global Public Square. His latest book, Last Call for Liberty: How America’s genius for freedom has become its greatest threat, was published in 2018.
Since moving to the United States in 1984, Os has been a Guest Scholar at the Woodrow Wilson Center for International Studies, a Guest Scholar and Visiting Fellow at the Brookings Institution, and Senior Fellow at the Trinity Forum and the EastWest Institute in New York. He was the lead drafter of the Williamsburg Charter in 1988, a celebration of the bicentennial of the US Constitution, and later of “The Global Charter of Conscience,” which was published at the European Union Parliament in 2012. Os has spoken at many of the world’s major universities, and spoken widely to political and business conferences across the world. He lives with his wife Jenny in the Washington DC area.