Veteran missionary/missiologist C. Gordon Olson has distilled the essential facts of the Christian missions movement to produce an introductory text for all Christians, with the goal of developing world Christians. It is marked by balance between theory and practice and has become a standard text in Christian universities, seminaries, and colleges for over two decades. It covers five dimensions of world missions: the biblical basis studied diachronically; the history of the movement, including discovery of virtually unknown background of modern missions; a unique summary of world religions; a contemporary overview of missions with 2010 statistics; and the functional importance of mission agencies. It emphasizes vignettes of key missions personalities and includes 50 unique graphics. It is endorsed by many outstanding leaders in the evangelical missions movement.