Very sad to hear about the death of David McCullough today. He was my favorite historian and a must-buy anytime he published a new book. Posting this photo in his memory. I met him in 2015 when he was giving a presentation at Yale University (which he attended). I work at Yale New Haven Hospital around the block, bumped into him on the street and followed him into the lecture. He was warm and gracious and a wonderful speaker. RIP, Mr. McCullough.