tim naftali, thanks for joining us on our set. what's the importance of a book festival like this in the world of, the literary world? >> guest: first of all, peter, it's a pleasure to be here. first of all, it's proof that you can have a good literary discussion in good weather. the second is that this is an opportunity for people to listen to authors talk about their books, talk about the ideas that inform their books and respond to questions. you know, when you write a book, you're not sure who's going to read it. you put a book out there, and it move ofs around and goes to public libraries, some people buy it, so this is not a one-way street here. this is not just authors talking at people, it's people who have read their books asking them questions and sharing their stories and explaining how their books, what their books meant to them. so it's a love fest. >> host: well, as a presidential historian i want to ask about a couple of recent books that have come out and get your take. david rem nick's is writing a new biography o