First, make slides that reinforce your words, not repeat them. Create slides that demonstrate, with emotional proof, that what you’re saying is true, not just accurate. No more than six words on a slide. EVER. There is no presentation so complex that this rule needs to be broken.
Second, don’t use cheesy images. Use professional stock photo images. Talking about pollution in Houston? Instead of giving me four bullet points of EPA data, why not read me the stats but show me a photo of a bunch of dead birds, some smog, and even a diseased lung? This is cheating! It’s unfair! It works.
Third, no dissolves, spins, or other transitions. Keep it simple.
Fourth, create a written document. A leave-behind. Put in as many footnotes or details as you like. Then, when you start your presentation, tell the audience that you’re going to give them all the details of your presentation after it’s over, and they don’t have to write down everything you say. Remember, the presentation is to make an emotional sale. The document is the proof that helps the intellectuals in your audience accept the idea that you’ve sold them on emotionally. Don’t hand out printouts of your slides. They don’t work without you there.
The home run is easy to describe: You put up a slide. It triggers an emotional reaction in the audience. They sit up and want to know what you’re going to say that fits in with that image. Then, if you do it right, every time they think of what you said, they’ll see the image (and vice versa). Sure, this is different from the way everyone else does it. But everyone else is busy
Reynolds, Garr (2011-12-15). Presentation Zen: Simple Ideas on Presentation Design and Delivery (2nd Edition) (Voices That Matter) (Kindle Locations 356-368). Pearson Education. Kindle Edition.