At a recent conference, it was shocking how many presenters, even great ones, crammed so much into each slide that they were unreadable from the middle of the large room. Worse, the people who could read them were doing exactly that — instead of listening. No matter the setting, internal or external, limit your slides to a single idea each. In fact, a single word is better; it means the audience can take this in instantly and then turn its attention to you to elaborate. That makes you and your ideas more memorable.