Kosslyn, Stephen M. Clear and to the point : 8 Psychological principles for compelling PowerPoint presentations / Stephen M, Kosslyn - 1a. ed. - USA : Oxford University Press, 2007 - 222 p. ils-; 25 cm. ISBN: 9780195320695 Subjects--Topical Terms: PowerPoint--Principios psicológicos LC Class. No.: P93.53.M5 / K67 2007