Donald M. Lewis is Academic Dean and Professor of Church History at Regent College in Vancouver, British Columbia. An expert on nineteenth-century British evangelicalism and popular religion, as well as global Christianity, he is the author of Lighten their Darkness: The Evangelical Mission to Working-Class London and editor of The Blackwell Dictionary of Evangelical Biography, 1730 1860 and Christianity Reborn: The Global Expansion of Evangelicalism in the 20th Century.