The Effective Philanthropy Learning Initiative (EPLI) is an interdisciplinary team working at the intersection of human centered design, strategic philanthropy, and the behavioral sciences. EPLI’s guiding question is: How might we help High Net Worth (HNW) donors increase their philanthropic impact? Individual donors in the US donate hundreds of billions of dollars every year, with HNW donors accounting for a significant proportion of that amount. We believe that the positive impact of this total giving currently falls short of its tremendous potential due to the challenges donors face in giving effectively. EPLI seeks to give HNW donors the tools and knowledge they need to become more intentional and outcome-focused in their giving.