658.403
R628B
           Roam, Dan
               The back of the napkin solving problems and selling ideas with pictures \ Dan Roam - New York : Penguin Group, 2010.
               xv, 284p.
                ISBN: 9781591842699

155437
                Subjects: PROBLEM SOLVING-AUDIO-VISUAL AIDS; MANAGEMENT-AUDIO-VISUAL AIDS; VISUALIZATION.