1. Richard E. Mayer, Multimedia Learning (Cambridge: Cambridge University Press, 2005); Edward R. Tufte, Visual Explanations: Images and Quantities, Evidence and Narrative (Cheshire, CT: Graphics Press, 1997).

2. J. Doumont, “The Cognitive Style of PowerPoint: Slides Are Not All Evil,” Technical Communication 52, no. 1 (2005): 64–70.

3. G. Jones, “Message First: Using Films to Power the Point,” Business Communication Quarterly 67, no. 1 (2004): 88–91.