Daryl Ireland is the Associate Director of the Center for Global Christianity and Mission, and the project manager of Chinese Christian Propaganda Posters. He focuses on the history of Christianity and mission in Asia. His study of 宋尚節 (John Sung), a Chinese revivalist whose itinerant ministry renewed the spiritual life of tens of thousands in the 1930s, has prompted him to write more broadly about revitalization movements, the role of women in revivalism, and religious conversion in China and Southeast Asia.