If you’re going to use PowerPoint, use it in a way that accentuates what you are saying. And if you want to deliver a successful presentation, you will have to deliver compelling spoken content in a compelling way. Therefore, the PowerPoint cannot do the talking.
PowerPoint slides can be used to accentuate humorous parts of your speech, and can help visual learners grasp statistics and trends. However, if a topic is complicated, you’re going to have to talk us through it, or don’t bother tackling the topic in a presentation.
Here’s a recent presentation slide illustrating the current situation the United States faces in Afghanistan. NO-NO!
I have been paring down the amount of words as much as possible on my PPT slides — it's a tough habit to break!