Francis A. Schaeffer founded the L'Abri Fellowship in Switzerland and was the author of many books, including The God Who Is There. Until his death in 1984, he was also a noted speaker with a worldwide ministry. His ministry continues through his books, with over two million copies in print.
James W. Sire (PhD, University of Missouri), formerly a senior editor at InterVarsity Press, is an active speaker and writer. He has taught English, philosophy, theology, and short courses at many universities and seminaries. He continues to be a frequent guest lecturer in the United States and Europe.
His InterVarsity Press books and Bible studies include The Universe Next Door (a worldviews textbook), Scripture Twisting, Discipleship of the Mind, Chris Chrisman Goes to College, Why Should Anyone Believe Anything at All?, Habits of the Mind: Intellectual Life as a Christian Calling, Naming the Elephant: Worldview as a Concept, Learning to Pray Through the Psalms, Why Good Arguments Often Fail and A Little Primer on Humble Apologetics.