Learning from the great story tellers reveals some of the strategies for visual presentation. The insight is that it is the story behind the slides and not the other way around. Nancy Duarte shares the value of helping the audience see the solution so they can embrace change rather than fear confusion. The audience is the hero.
Here is the link to the article that shares some of the narrative along with links to the video presentations. http://www.huffingtonpost.com/vala-afshar/the-art-of-persuasive-sto_b_5548004.html