The Yes Effect

From the missions strategist behind "The 10/40 Window" In 1990, Luis Bush helped change modern missions by introducing the concept of the 10/40 window, a geographic region where large, dense populations of people suffered severe poverty and limited access to the gospel—essentially shining a light on the world’s greatest need. Now, after decades spent serving in global missions mobilization, Luis has a unique perspective on what God is doing around the world. Though statistics and maps can be a g