After review slide shows on slideshare.net, I had to choose The Death of the Newspaper since it hits close to home for me. It was informational (nailed the problem from what I have witnessed) and the slides had a nice flow from one to the next. In terms of the Elements of Art used, the introduction pages was eye catching using texture. The next pages are appealing composition-wise, which I would categorize as shape (I know it's a stretch) and the use of text would be line. Not much color or tonal use.

http://www.slideshare.net/joannageary/the-death-of-newspapers-finding-business-models-in-a-perfect-storm