Karl Barth (1886-1968) was Professor of Theology at the University of Basel, Switzerland. One of the greatest theologians and preachers of the twentieth century, he is best known for his monumental systematic theology, Church Dogmatics.
William H. Willimon is Dean of the Chapel and Professor of Christian Ministry at Duke University. He is the author (or co-author) of many books, including The Truth About God; Lord, Teach Us; Resident Aliens; and Where Resident Aliens Live(all with Stanley Hauerwas); and The Search for Meaning. He lives in Durham, NC.