I can’t pretend there’s scientific research behind these little graphics – just a fair amount of observation over the years! ;)
Let’s start off with a touch of cynicism about the topic of your presentations!
What you should make presentations about if you’re a speaker ;)

And how about some more cynicism – this time about using Powerpoint.
When should you use Powerpoint in your presentations?
and finally even more cynicism about the amount of times PowerPoint is used in presentations…
The amount of powerpoint in presentations – a Venn Diagram

Love the images!