John Stott is known worldwide as a preacher, evangelist and communicator of Scripture. His books have sold millions of copies around the world and in dozens of languages. He was honored by Time magazine in 2005 as one of the "100 Most Influential People in the World."

Tim Chester is a pastor of Grace Church in Boroughbridge, North Yorkshire, and a faculty member with the Acts 29 Oak Hill Academy. He was previously research and policy director for Tearfund and tutor in missiology at Cliff College. Tim is the author of over thirty books, including The Message of Prayer, Closing the Window, Good News to the Poor, and A Meal with Jesus.