Canon Dr Rudolph W Heinze is adjunct professor at Wheaton College and visiting scholar at Oak Hill College, North London. He has written extensively on the history and theology of the Reformation.

Dr Tim Dowley is a historian and a prolific author and editor of Bible resources for adults and children. He holds a bachelor's degree in History and a doctorate in Church History, both from the University of Manchester, England. He has written a number of children's stories and books onbiblical subjects and the history of Christianity, as well as works onmusic and literature. Tim has traveled extensively, particularly in Israel, Turkey and other biblical lands. He lives in South London with his wife and family.