Nancy Duarte TED Talk

Nancy Duarte is an American graphic designer and writer. She is world know for her two of her best-selling books Resonate: Visual Stories that Transfrom Audiences and Slideology: The Art and Science of Creating Great Presentations. She has also been awarded by Microsoft the MVP award, for helping people excel at PowerPoint.

In her TED Talk, Nancy Duarte states that all of the great speeches have a similar structure.

She explains the shape of the speech. In my opinion the shape is similar to a square wave. The bottom part of the "wave" is when the presenter talks about what it is, while the top of it the presenter explains how it could be.

Duarte uses two well known speeches. Martin Luther King Jr`s "I Have a Dream" and Steve Jobs`iPhone launch speech. Surprisingly these two speeches follow the same structure described by Nancy Duarte.