Make data visual. Early in the presentation Cook announced that Apple customers have downloaded 50 billion apps from the App Store. Instead of simply putting the number [50 billion] on the screen, as most presenters would do, Apple designers created a visual display of the data. Since the statistic had a lot of zeroes they decided it would be impressive to fill the screen with it: 50,000,000,000. But they didn’t stop there. If you look closely at the slide (below) you can see that the zeroes are actually images of apps. Data is more memorable when it’s visually interesting.