DAVID CALLAHAN is founder and editor of Inside Philanthropy, a digital media site that covers the world of giving by wealthy donors and foundations. He has interviewed and written about many of the top philanthropists of our time, and his new book is THE GIVERS: WEALTH, POWER, AND PHILANTHROPY IN A NEW GILDED AGE.Callahan is also author of seven nonfiction books including FORTUNES OF CHANGE: THE RISE OF THE LIBERAL RICH AND THE REMAKING OF AMERICA, and THE CHEATING CULTURE: WHY MORE AMERICANS ARE DOING WRONG TO GET AHEAD. Previously, Callahan was a Senior Fellow at Demos, a national think tank he co-founded in 2000, as well as a Resident Scholar at the Century Foundation. His writing has appeared in numerous publications, including The New York Times, USA Today, the Los Angeles Times, and the Washington Post, and he is a frequent media commentator. Callahan is a graduate of Hampshire College and holds a Ph.D. in politics from Princeton University.