I knew from 25 years of shooting still photographs for magazines all over the world that attitude and body language are paramount in creating a strong visual impression—magazine ads have less than two seconds to capture the reader’s attention.
This quote is so relevant even in the world of presenting to audiences. First, the presenter’s attitude and body language are paramount to the success of the presentation. Secondly, similar to magazine ads, your slides have less than a few seconds to capture the audience’s attention, and rightly so, because after those initial seconds, the attention should be on the presenter, and not the slides!
Other than Nicholas’ book, you may want to read this post by Jerry Weissman, where he shares Vinod Khosla’s five-second rule for slides.

