10/20/30: Why the Rule Should Be Used in Presentations

10-20-30 Rules

presentation tips

Are you familiar with the 10/20/30 rule? It states that a presentation should have 10 slides, last no more than 20 minutes, and should not have a font sizes less than 30 pt. 

This rule was made due to the gradual decrease of peopleโ€™s attention spans. Making presentations concise and straightforward will save time while still getting the core message across. 

Let us elaborate.

10 Slides 

It can be quite a challenge to comprehend more than 10 concepts during a meeting. 

The 10/20/30 rule suggests using 10 slides to discuss your core message, and provides the following example flow of topics for investor proposals and venture capitalist presentations:

  • Problem 
  • Your solution 
  • Business model 
  • Underlying magic/technology 
  • Marketing and sales 
  • Competition 
  • Team 
  • Projections and milestones 
  • Status and timeline 
  • Summary and call-to-action 

Remember these if you want to get your point across in a concise and straightforward way. Depending on the type of presentation youโ€™re giving, you can tweak these to fit your purpose, but try to keep your slides to a 10 slide minimum, with a visible flow like the one above.

Three colleagues are gathered around an office desk, intently working on a pitch deck. A man with glasses points at a computer screen, while a woman with blonde hair looks focused on the slide template. Another man holds a tablet, contributing to the discussion.

20 Minutes 

Ideally, a 10-slide presentation would only take 20 minutes to finish. Beyond that and youโ€™ll start losing your audienceโ€™s attention. 

Keep your presentations short so you can address questions and other concerns at the end. 

A young woman with long, dark hair sits in a crowded auditorium, engrossed in her tablet. She is surrounded by other attendees, some of whom are also looking at devices or paying attention to a presentation out of view. The atmosphere is attentive.

30pt Font Size 

People usually use smaller font sizes to cram chunks of information into their slides. Doing so might distract your audience from listening to you and leave them unable to focus or retain the information you present. They may also question whether you are familiar with your own material. A straightforward presentation will assure the audience that you know the topic well enough to explain it in a way that they will understand, especially if theyโ€™re new to the concept. 

Use a larger font and remove the unnecessary details. Remember, your presentation shouldnโ€™t do the talking for you, but instead, be there to guide your audience. 

A man in a suit stands on a stage, pointing at a PowerPoint slide displaying a bar graph with percentages (48%, 75%, 64%, 84%). The title on the graph reads "Relative performance comparison." Audience members are visible in the foreground.

Use the 10/20/30 rule as a consistent baseline to keep your audience engaged during your next presentation. Working within its boundaries will push you to craft a more refined presentation that focuses purely on the essentials, leaving out any distractions for your audience. It’s important to remember that people naturally have a limit to their attention span. This simple and effective rule is meant to guide you in creating a presentation that fits fully within the peak time of your audience’s attention. It’s at that point when your message is most effective and will lead to a more memorable experience for all.

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