Joel R. Beeke is President of Puritan Reformed Theological Seminary and chairman of the board of Reformation Heritage Books. He is also a pastor of the Heritage Reformed congregations in Grand Rapids Michigan and has written many books.

Stephen McCaskell is an award winning filmmaker from Manitoba, Canada. His documentaries have been watched by millions of people all over the world, and he has travelled to more than 50 countries to make them. Stephen's work as producer and director includes: Luther, Puritan, Epic, The Church, Discipleship Explored and more. He is supervising producer of Film at Ligonier Ministries, Sanford, FL.