Henry Timms is executive director of the 92nd Street Y, a cultural and community center that creates programs and movements that foster learning and civic engagement. Under his leadership, the 144-year-old institution was named to Fast Company's "Most Innovative Companies" list. He is the co-founder of #GivingTuesday, a global philanthropic movement that engages people in close to 100 countries that has generated hundreds of millions of dollars for good causes. He is a Visiting Fellow at Stanford University's Center on Philanthropy and Civil Society. With Jeremy Heimans he is the co-author of the book New Power: How Power Works in Our Hyperconnected World - and How to Make it Work for You.