Bruce Hindmarsh, DPhil (Oxon), is the James M. Houston Professor of Spiritual Theology and Professor of the History of Christianity at Regent College in Vancouver. He wrote his doctoral thesis at Oxford on John Newton, which was published as John Newton and the English Evangelical Tradition (Oxford University Press, 1996). A paperback edition was published by Eerdmans in 2000. He also edited and wrote an introduction for an edition of Newton's autobiography and his letters on growth in grace: The Life and Spirituality of John Newton (Regent College Publishing, 1998). He is a fellow of the Royal Historical Society and a past president of the American Society of Church History. His book The Spirit of Early Evangelicalism: True Religion in a Modern World won best History/Biography in the 2019 Christianity Today Book Awards. Bruce speaks and writes regularly for academic and general audiences around the world on history, theology, and the spiritual life. Some of this work and his other books can be viewed at www.brucehindmarsh.com.

Craig Borlase is a New York Times bestselling writer, specializing in crafting dramatic, engaging memoirs. Recent work includes Finding Gobi — the international and New York Times bestselling account of an ultra-marathon runner's chance encounter with a stray dog in the Mongolian desert, now translated into twenty-one languages — and My Name Is Tani — the story of an eight year old chess prodigy living in a homeless shelter in NYC. Films of both books are currently in development, with Tani… acquired by Paramount Pictures/Trevor Noah and Gobi… acquired by Sony/Tencent. Craig has collaborated with a wide range of authors on more than fifty books, from a global entertainment icon to a former Muslim woman who was one week away from becoming a suicide bomber. Previous work has taken him to Iraq, Jordan, China, Haiti, India, Sweden, Cuba, Uganda, Australia and all over the United States. Website: https://www.craigborlase.com/