The best way for your presentation to support your spoken words, is through one short message per slide and a relevant, supporting visual. Your narrative can then bring the presentation to life using the terminology and examples which your audience relate to.
A classic mistake presenters make, is to pack their slides full of words, which they then read to the audience. Unless your audience is very young indeed, they can read for themselves. Reading to them can be seen as annoying and slightly insulting.
One of the simplest ways to transform your presentations from heart-sink to happy is to keep your slides clean of unnecessary words and data.
TIP 1: Make one, simple statement on each slide and use the remaining “space” for a visual that explains and clarifies. And that’s it. No more tips.