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Unformatted text preview: Percentages, the amount of sales or profit Expert Testimony expert testimonies are citations of people that have studied or professionals on the material you're using it helps validate the presentation with professionalism from doctors lawyers judges Peer Testimony dear testimonies are people that understand the problem the problem or the situation or the material you're presenting our people that work or have a small expertise on this matter from friends coworkers or anybody that comes around from street 1. Why do you need supporting materials in your speeches? You need supporting materials to validate the information that you're presenting this helps in making the presentation more professional 2. How does your audience analysis help you to determine the type of supporting material you select? It depends on the audience with some audience videos are better suited but with other types of audiences still images work better...
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- Spring '11