No problem. Communication is underrated in it's importance, you can have brilliant findings but if you suck at communicating them, what good are they?
I don't have any resources for powerpoints at my fingertips, but here are some principles that have worked well in my experience:
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One last point in general--think like a pyramid. Don't start right at the tiniest details, always start big picture and work your way down. People need to understand the context before they'll interpret the content, if you go too fast, I find people tend to get confused and overwhelmed which will defeat your entire purpose.
If you need more resources, check out Slideology by Nancy Duarte: https://www.amazon.com/slide-ology-Science-Presentation-Design-ebook/dp/B006QNDDHW/ref=pd_sim_351_14?_encoding=UTF8&pd_rd_i=B006QNDDHW&pd_rd_r=9b245ef4-71d7-11e9-a9da-2171f603c15c&pd_rd_w=2ek6f&pd_rd_wg=MJYCz&pf_rd_p=90485860-83e9-4fd9-b838-b28a9b7fda30&pf_rd_r=RW78Y5WSCA1WNKD18APQ&psc=1&refRID=RW78Y5WSCA1WNKD18APQ
I haven't personally read it, but I've heard really good things about it. Hopefully this helps!