8 Ideas for Better Slides
By Zach Gemignani
December 26, 2007
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I recently ran a few training sessions about how to visualize and present complex data. The high point was a series of “extreme slide makeovers” in which I honed the message and cleaned up visuals from existing presentations. Here are some ideas to tame busy, confusing slides.
Simplify your slide master, make room for content. Fancy borders, elaborate fonts, and background images do little to impress your audience. They leave little room for communication, either. For those saddled with frilly corporate slides, you’ll have to take on the Brand Standards Police.
It may help to get quantitative. Consider this PowerPoint standard slide master. Less than 50% of the total slide area (highlighted in green) is available for content.

Say something once, why say it again? The Talking Heads sang: You're talkin' a lot, but you're not sayin' anything / When I have nothing to say, my lips are sealed / Say something once, why say it again?
Wordy slides can be confusing and tedious. The author is using a lot of words—and often lots of qualifiers—in hopes that the core point lies somewhere within. The burden of synthesis is shifted to the audience. That’s not fair.
Make one point per slide. The take-away sentence on your slide should clearly state your point; the data on the slide should support that point. Any information that is tangential to the key concept can be pushed to an appendix or supporting slide.
Redundancies cause unnecessary repetition. I was surprised in my slide makeovers how often I found information that could be consolidated to simplify the slide. Redundancy came in many forms: multiple graphs repeating the same legend, axis labels that are described in a chart title, restating the same point.
Christmas is over, take down the decorations. Clear out clip art, “screenbeans”, and other images used to dress up the slide. Most effects are less “dazzling” than you might think. Eliminate gradients, shadows, 3D effects, and most animations. These design effects were exciting 10 years ago. But if they don’t help you communicate, move on.
On the other hand, consider using full-screen photos as a way to convey a idea or theme, accompanied by few words. Here’s an example from a presentation I gave a few months back:

Reduce chart-junk. Excel and PowerPoint charts come pre-packaged with a heaping helping of chart-junk (“unnecessary or confusing visual elements”). Here are a few things I change in a default column chart: no shaded background, grey gridlines, no chart outline, no y-axis line, no column outlines, turn off auto resize text, change column colors to increase contrast. If you want to save yourself from chart-junk induced carpal tunnel syndrome, check out Chris’ chart cleaner Excel add-in. Sometimes charts aren’t necessary at all. If you’re using a pie or stacked column chart to show a single data point, the number alone will do the job more clearly.

Delete your “Text-junk” too. Text can contain “chart-junk” too—visual distractions in text that dilute your message.
- Title Capitalization or Other Excessive and inconsistent use of Capital Letters. Title caps doesn’t make sense to use and is more difficult to read.
- Underlining. If you want to emphasize a word or phrase, use bold or italics.
- Don’t use bullets when there is only one item or sentence. People have become so accustomed to using bullets that they’ll use them when they are totally unnecessary.
- Bad fonts: The worst is Comic Sans MT, as the LMNOP blog describes: “These days, just like an e-mail from an “@ aol.com” address has a distinct lack of credibility, an e-mail written in this font makes the sender seem ridiculous and out of touch.”
Simplify style and formatting. Inconsistent colors, fonts, font sizes, and other styles are a subtle distraction. Limit yourself to three font colors (emphasis!, normal, low-emphasis), three font sizes, and three font styles. Here’s an example.
Three colors

Three sizes

Three font-styles

Putting it all together

All these points can be summed up as: Make everything on your slide serve your story. Best wishes for 2008!


7 comments | Show all comments only the last 5 are shown
Ken said:
I go even further:
I use a sans serif font (serifs aren't needed for what should be minimal text);
never sized less than 28 pts (more as a discipline for myself to minimize text);
almost never use articles (except in quotations, which I also edit heavily, using ellipsis); and
almost always use images to "emotionally anchor" (or graphically explain) what I'm trying to convey.
Combined with *sparing* use of appropriate video and audio, I find this approach has been able to keep 100+ college freshmen awake and reasonably attentive for 10 weeks of an 8am course.
Joy said:
Great post! I love seeing the really good presentations that are simple and to-the-point. I was wondering if you have any suggestions for when you are limited by a standard template you have to use as part of company policy.
Zach said:
Joy, I read one presentation guru who argued that it is foolishness to paste the company logo on each and every slide. It isn't as if the audience has forgotten who is giving the presentation two slides in. With that in mind, one idea is to use the standard template for the title page, then go with blank/all white slide masters when you want need more area for content. Likewise, use images that take up the full slide. You are still using the template, it is just getting covered up by your content.
David Gerbino said:
Zach,
I am the brand police and I could not agree with you more. However, in my roll as "the brand police" I did have concessions to make with the powers that be. Having said that, we have opened up our corporate templates to increase screen real estate as compared to what the branding agency created. Over time, the "logo" on every page will shrink and ultimately disappear.
Thank you for this very important piece on presentations. You do Edward Tufte proud.
jlori said:
Great.
Joy said:
Thanks so much Zach and David for great insights! I hope to be able to tell our story without all the brand stuff taking up 20-30% of the slide!
Adrian Cherry said:
Another great post, w.r.t. point 7 please support the cause!
http://bancomicsans.com/about.html
said:
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