Economists Ricardo Hausmann and César Hidalgo released their Atlas of Economic Complexity at the Harvard Center for International Development on Thursday. The 300-plus page atlas is unlike any you’ve seen before—it doesn’t inform readers where they are geographically, and it won’t be any help when charting pan-continental adventures. But from an economic perspective, the atlas will tell readers where their countries rank in terms of productivity—and, most astonishingly, where it will be in 10 years.