THE AUTHORS Leslie R. Crutchfield is an author, speaker, philanthropic and nonprofit adviser, and leading authority on scaling social innovation and high-impact philanthropy. She is a senior adviser with FSG Social Impact Consultants and coauthor of Do More Than Give from Jossey-Bass. Heather McLeod Grant is a consultant, author, speaker, and adviser to high-impact nonprofits and foundations. As a senior consultant at Monitor Institute, her work focuses on scaling social innovations and impact, leveraging networks for social change, and transforming large-scale legacy nonprofits. She also lectures at Stanford University and serves on several nonprofit advisory boards.