Barnes and Noble signing with ‘Find Your Whistle’ author Chris Ullman Posted on June 23, 2017 by mascoteditor Barnes and Noble signing with 'Find Your Whistle' author Chris Ullman 12:00 pm – 1:00 pmJuly 15, 2017 Join Chris Ullman for a book singing event at the Tyson's Corner Barnes & Noble on July 15 at noon! More about Barnes and Noble signing with 'Find Your Whistle' author Chris Ullman