In episode 2 of Off Book, typeface designers Jonathan Hoefler and Tobias Frere-Jones outline the importance of selecting the right font to convey a particular feeling. Graphic designer Paula Scher talks about building identity in messaging, while Eddie Opara uses texture to create reaction. Infographic designers Julia Vakser and Deroy Peraza map complicated data sets into digestible imagery, mixing color, graphics and type. http://www.pbs.org/arts