The Guy Kawasaki 10/20/30 Rule of Powerpoint
The majority of the presentations that I see have text in a ten point font. As much text as possible is jammed into the slide, and then the presenter reads it. However, as soon as the audience figures out that you’re reading the text, it reads ahead of you because it can read faster than you can speak. The result is that you and the audience are out of synch. From the 10/20/30 rule of powerpoint