Sam George (PhD) serves as director of the Global Diaspora Institute at Wheaton College Billy Graham Center and as a catalyst of the Lausanne Movement. He holds degrees in Mechanic...view moreSam George (PhD) serves as director of the Global Diaspora Institute at Wheaton College Billy Graham Center and as a catalyst of the Lausanne Movement. He holds degrees in Mechanical Engineering, Business Management, and Theology. He researches and teaches global migration, diaspora missions, and World Christianity around the world. Sam is the author/editor of a dozen books, including three volumes on Asian Diaspora Christianity.view less