This document discusses how the Foundation Center uses visualizations to analyze philanthropic data and enhance grantmaking effectiveness. It summarizes how the Foundation Center collects, cleans and codes data from tax forms on over 106,000 foundations to create an open database. It then shows examples of how visualizations of this data have been used for fundraising, advocacy, decision-making and enabling collaborations. Specific visualizations shown analyze trends in U.S. foundation assets, funding around natural disasters, and comparisons of Foundation Center and World Bank funding locations and amounts. The document concludes that visualizations have helped create a more complete picture of global philanthropic activity and funding gaps, and inspired better data standards in the field.