Recently, the founders of ad agency School found themselves together with General Assembly in Guatemala to visit elementary schools built by Pencils of Promise. Other than making great creative work, School's agency model has a purpose: to provide educational opportunities to kids around the world. Their work with Pencils of Promise does just that, and the agency's principals -- Shane Kent, Joe Corr and Max Lenderman, all went into the heart of Guatemala to see the work being done firsthand. The result of the trip was nothing short of remarkable. Inspiring. And motivating.