World Bible School Since the 1950's, WBS has been sending Bible correspondence courses free-of-charge to students around the world. We now serve over 2 million students from 141 nations. The courses were first written by Christians for Christians who served in the armed forces overseas. These men and women separated by war and distance from other believers had difficulty finding opportunities to gather for fellowship, Bible study, prayer and encouragement. To their delight, the Christian service men found their fellow soldiers had a great interest and hunger for learning from the Word of God and they began sharing the materials with thousands who were not Christians. - http://www.wbschool.org