The art of PowerPoint can sometimes be best explained through researching past PowerPoint mistakes.
Flickr user Jesper Laugesen finds this image to display the world’s worst PowerPoint. It is complex and confusing for viewers to look at: http://www.flickr.com/photos/jlaugesen/3104104113/.
Ironically, another poor example is one used by Bill Gates, as noted by niallkennedy on Flickr:
Following is an example of a text-heavy presentation found on SlideShare:
http://www.slideshare.net/rsraghav/sales-distribution-hindustan-unilever-presentation
Nice picks. You may have seen comparisons between Bill Gates and Steve Jobs presentations. Jobs being the zen presenter.