People sometimes ask me if it is possible to present effectively without using slides. Of course the answer is:’Absolutely yes!’ If you want to look at an excellent example of ‘Absolutely yes’ that has interesting content as well, look at the video I have included below. Simon Sinek’s presentation is titled: How Great Leaders Inspire’. As you watch keep in mind that he would have practised this presentation many times before.
I found this link via Ellen Finklestein’s useful PowerPoint Tips blog

Really liked this – both the mesage and how it was given.
Thanks, Lesley. Yes, I agree. With a message the speaker is totally energised about, we don’t need slides as well.