In a presentation, both pictures and words are important, and they both play complementary roles. If you had to choose just one of them; then seeing is a much more important part of presenting. Presentations, by their very nature, are meant to be seen since they evoke actions such as project, display, or broadcast; and all of these actions represent visual media. Text and speaking are important too, but you can be more effectively heard and remembered if your content includes both text and pictures.
Learn how to insert a picture on a slide in PowerPoint 2016 for Mac.

