Imagery is the hero of the composition
Effective design is all about making people retain information and visuals have a much larger impact than words. Visuals are going to amplify everything that presenter is saying. After all, if the slides are full of words, the audience may ignore the speaker and try to read the slides first – the speaker can’t make an impact until the audience is done reading. We don’t want a presenter to get ignored. So if the audience has to read, they’re not paying attention. I don’t just want the presenter to look good, I want them to win over the audience.
To avoid falling into the trap of using too many words, images or charts should come first before the text (both in your approach to designing each slide and the order it unveils to the audience). You might realize you don’t even need any text! Visuals are a more powerful and evocative compliment to your message than reiterating your same points in text or bullet points.
If original photography is lacking, one of my favorite free stock photography sites to elevate my slides is Unsplash.com. Other stock photography sites can offer overly-staged, unauthentic, and cliché photos. Unsplash is a gamechanger when it comes to providing users with beautiful, high-resolution photography uploaded by real artists and photographers.