David Callahan

David Callahan is an American writer and editor. He is the founder and editor of ''Inside Philanthropy'', a digital media site. Previously, he was a senior fellow at Demos, a public policy group based in New York City that he co-founded in 1999. He is also an author and lecturer. He is best known as the author of the books ''The Givers'' and ''The Cheating Culture''. Provided by Wikipedia