The Science Behind Great Presentations


Photo by Teemu Paananen on Unsplash

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I give a lot of talks. When I attend conferences, I listen to the other speakers. I learn a lot from both experiences.

As someone who has spent many hours researching the topics surrounding my profession, I have a protocol I follow whenever I engage in a new activity, whether it’s writing books and blogs, coaching advisors on how to convert prospects into clients, or creating content and designs for web pages.

I do the research. I don’t assume the way it’s always been done is supported by the evidence.

I took the same approach when I started speaking. It’s an ongoing process. Here’s what I learned from John Medina’s excellent book, Brain Rules.

The power of visuals

Medina’s message is straightforward: Vision is by far the most dominant sense, taking up half of our brain’s resources.

He describes the result of a fascinating experiment. Expert wine tasters in France were given white wine, which had been altered with a colorless, odorless red dye. Every one of the 54 wine-tasting professionals described the wine in terms typically used when tasting red wine.

Medina makes a compelling case for this central point: We learn and remember best through pictures, not through written or spoken words.

Despite this research, I typically see speakers using PowerPoint slides that are text-dense and image-sparse. Medina tells speakers to “burn” their PowerPoints and create new ones, consistent with his research.

My process

In my talks, I often use no presentation aids. If I do, I have only a couple of slides, solely of images, with no text.

Am I violating Medina’s research which indicates visuals trump spoken words?

I would be if – like most presentations – my talks consisted of me speaking for 45 minutes or so, followed by a few questions from the audience in the remaining time.

Here’s some research that should be a wake-up call, whether you are speaking to an audience or one-on-one to a prospect or client: The average adult attention span is only five minutes. After that, about 84% of your audience is likely to tune out.

My talks are usually 90 minutes in length. I have a surefire way to keep my audience engaged, without the use of presentation aids. It’s disarmingly simple.