Eleven Ways to Use Images Poorly in Slides
http://www.presentationzen.com/presentationzen/2009/08/10-ways-to-use-images-poorly.html

Reynolds, Garr
Presentation Zen
2009

Abstract:

As digital cameras have become ubiquitous, and cheap (or free) photo websites plentiful, more people than ever are using images in presentations. Images are not appropriate for every kind of talk, but even when images are appropriate (such as keynote/ballroom style presentations), people are still making the same common mistakes. So here are some things to keep in mind if you use images in your next talk.