Mistake #1: Setting presentation objectives in terms of what the presenter intends to do, rather than how the audience should change their minds and actions as a result of the presentation.
Mistake #2: Focusing on what you want from your audience, rather than on how your presentation will help them solve a pressing problem of theirs.
Mistake #3: Only including evidence that supports your recommendation, instead of providing an objective evaluation of all the evidence, for and against.
Mistake #4: Adding lots of color, sounds, and clipart to make your presentation look professional, instead of only using exactly what you need to get your point across.
Mistake #5: Assuming that your audience has the same personality and communication preferences as you do, instead of consciously considering how those with different personality types from yours would like to receive their information.
Mistake #6: Presenting your information in the order that makes most sense to you, instead of building an intriguing story.
Mistake #7: Using your slides as prompts, instead of as visual aids that support—rather than compete with—your spoken message.