If you have chosen to use visual aids in your presentation, it is important to give credit where credit is due. Make sure to mention the source of your props if you borrowed them from a person or organization. You should cite the source of all data and images used in your presentation. There are conflicting opinions about whether the source citations should be on the individual slides or at the end of the presentation on a final slide. Including citations throughout the slide deck places the source information adjacent to the relevant text, but it is often so small as to be unreadable. Placing citations at the end of your presentation reduces clutter on the slides and allows the citation information to be larger and more legible. In all cases, refer to your sources when speaking and be able to provide exact citations for anyone interested in your sources. Citing your sources provides credibility to your content and shows you are a professional.
"Astronomy Picture of the Day 2008 May 18" by NASA. Public domain.
Once you have decided on which visual aids to use and have prepared them for your presentation, you should practice with them repeatedly. Through practice you will be able to seamlessly incorporate them into your presentation, which will reduce distractions, increase your credibility, and keep the audience’s attention focused on your message. Practice will also help determine the time required for your presentation so you can edit before you speak if necessary. No audience benefits from the speaker looking at the time, admitting how off schedule they are, or rushing through their remaining slides.
No matter which visual aid(s) you have chosen, they should be displayed only when you are ready to talk about them. Otherwise, the audience will spend time reading any text or guessing the meaning of the visual instead of focusing on the presenter’s words. Once used, visuals should also be removed from sight so as not to continue to distract the audience.
A picture is the expression of an impression. If the beautiful were not in us, how would we ever recognize it? ~ Ernst Haas
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