photo credits: demos.org - CC-Zero
David Callahan is 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.
Read more or edit on Wikipedia
book by David Callahanwd:Q5216070