Stephen J. Nichols(PhD, Westminster Theological Seminary) serves as the president of Reformation Bible College and chief academic officer of Ligonier Ministries. He has written over twenty books and is an editor of the Theologians on the Christian Life series. He also hosts the weekly podcast 5 Minutes in Church History. Ned Bustard(BA, Millersville University) is a graphic designer, author, illustrator, art gallery director, and printmaker. He owns the design firm World's End Images, and is also the creative director for Square Halo Books, Inc. He is the designer for Christians in the Visual Arts. Ned and his wife, Leslie, have three daughters.

R. C. Sproul(1939-2017) was founder of Ligonier Ministries, an international Christian discipleship organization located near Orlando, Florida. He was also first minister of preaching and teaching at Saint Andrew's Chapel in Sanford, Florida, first president of Reformation Bible College, and executive editor of Tabletalkmagazine. His radio program, Renewing Your Mind, is still broadcast daily on hundreds of radio stations around the world and can also be heard online. Sproul contributed dozens of articles to national evangelical publications, spoke at conferences, churches, colleges, and seminaries around the world, and wrote more than one hundred books, including The Holiness of God, Chosen by God, and Everyone's a Theologian. He also served as general editor of the Reformation Study Bible.