Mark W. Karlberg obtained three theological degrees from Westminster Theological Seminary in Philadelphia, including a doctorate in Reformation/Post-Reformation studies. He is the author of the trilogy: Covenant Theology in Reformed Perspective: Collected Essays and Book Reviews in Historical, Biblical, and Systematic Theology (2000); Gospel Grace: The Modern-Day Controversy (2003); and Federalism and the Westminster Tradition: Reformed Orthodoxy at the Crossroads (2006), all published by Wipf and Stock.