JOSH MCDOWELL is an internationally known speaker, author, and champion of the Beyond Belief Campaign. He a traveling representative of Campus Crusade for Christ speaking to more than ten million people in at least 84 countries. Josh has authored or coauthored more than 90 books. Josh and his wife Dottie, have four grown children and live in southern California.

Bob Hostetler is a writer, editor, and speaker from Southeastern Ohio. He has coauthored eight books with Josh McDowell. Bob is a frequent speaker at churches, conferences, and retreats. He has been a disk jockey, pastor, magazine editor, freelance book editor, and, with his wife, Robin, a foster parent to ten boys (though not all at once). Bob and Robin have two adult children, Aubrey and Aaron.