When designing a PowerPoint presentation, one of the first choices one makes is the slide size. PowerPoint has switched to default 16:9 aspect ratio of the presentations a couple of years ago, which follows the trend of "wide-everything", including smartphones, computer monitors, TVs, and projectors & beamers. But with the craze to wide-everything, is 16:9 slide presentation aspect ratio the best choice for all circumstances? Here are my thoughts. (more…)