PowerPoint allows speakers to pretend that they are giving a real talk, and audiences to pretend that they are listening. (Edward Tufte, 2006)
Ouch!
Take a moment to reflect on your own presentations. Have you ever been in front of an audience (in the room or on the screen) and sensed they weren’t listening to you?
if you have sensed it, you were right; they weren’t listening.
And it was your fault for distracting them with your slides. All those words are an invitation to read – and humans cannot read and listen at the same time!
Most people are so bad at creating slides that support their presentation that they would be better off talking without slides. That way, the audience would have to listen if they wanted to know what the presenter’s message is.
The key to changing your effectiveness as a presenter is to not to start with the slides. All that choosing of themes and re-arrranging bullet points is actually a substitute for thinking.
You need to start by writing what you want to say. Revise and edit your “script” until it is as short and clear as you can make it. Then, and only then, should you think about slides. And the first question is, do I need any slides for this at all?
If you decide slides will help, minimise the amount of text on your slides. Text enables people not to listen; images (photos, graphs, diagrams) help the audience remember what you say.