The 10-20-30 rule when presenting
PowerPoint has been around for a while now and when used correctly is still a powerful presentation tool. When used badly - well, I'm sure we have all dozed off through the 50 slide presentation with 20 different subjects all crammed in in our time...
So what is the 10- 20-30 rule? This was invented by a chap called Guy Kawasaki around a decade ago and it is still as relevant now.
The rule works like this:
10 = The maximum number of slides you should have in your presentation - As a basic guide you will have around 10 minutes to present a piece which is of vital relevance to your audience.
20 = 20 minutes should be the maximum amount of time a presentation should last for
If you consider that you may wish to talk for a few minutes per slide. Then think, do you really want to be talking to your audience for over 30 minutes?? Think 10 minutes then give your audience a ‘brain break’.
30 = The smallest font size that should be used in your deck
Never fall into the trap of using long sentences of text and then reading it out to your audience, it is dull at best or condescending at worst. One word in large text or better still a picture for story-mapping.
If you have designed a PowerPoint presentation recently go back and take a look. Does yours follow the 10-20-30 rule? If not you may wish to edit this! Need more help? Contact me at