professors paul brace and barbara hinckley. it's called "follow the leader: opinion polls and the modern presidents." thank you very much for joining us. the redesigned booknotes web site features over 800 notable nonfiction authors, interviewed about their books. there you can view view the programs, see transcripts and use a searchable database and find links to the authors blogs, web sites, facebook pages and twitter feeds. a helpful research tool and a great way to watch and enjoy the authors and their books.