You can make your audience sit up and pay attention if you follow a few simple rules the next time you make a PowerPoint presentation. Avoid straining viewers' eyes with a white background, keep your font size to a minimum of 28 points, illustrate key concepts with graphics and remember to engage your audience with questions, advises Stephen Kosslyn, a Harvard University professor and author of "Better PowerPoint." "What people need to remember is that it's not about the slides. It's about understanding what the audience needs," Kosslyn says.
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