Building stronger presentations is as simple as 10/20/30 with a rule devised by entrepreneur Guy Kawasaki. When it comes to PowerPoint, he says any presentation can be broken down into a maximum ten slides. The overall presentation should be finished in twenty minutes. And finally, the text on the slides should be in thirty-point font. Ten slides ensures not going overboard, twenty minutes guarantees not running late when technical difficulties arise, and thirty-point font means everyone can see the slides and forces you to be economic in your use of text in slides. Maybe do not follow this rule exactly all the time, but staying in the spirit of this rule will certainly make for more digestible presentations.