He has one of the best voices in America. Those who enjoy history have certainly read one, if not more, of his books. He's an all-around good guy.
You may know him as the narrator on Ken Burns' Civil War. You may know him as the big name on the front of Truman and 1776 and Mornings on Horseback. You may know him as that old guy who helped produce the miniseries John Adams.
He, of course, is David McCullough. And Peggy Noonan, a great writer herself, has an excellent piece on the meaning of the American Revolution and on Mr. McCullough. It's worth the read.