The amount of text you use will depend on whether you’ll be talking through the deck, or sending it as a link or attachment for your audience to read in their own time. Think: how are you presenting?
As part of a meeting
You may want to use less text in your slides (no one can read and listen at the same time). The fewer words on screen, the stronger the visual effect and overall impact.
Remember that if you’re presenting your deck to an audience, depending on the platform you use, you could always use speaker notes (additional details that no one else will see on screen) with additional information to elaborate on certain points or offer additional detail. This can also be a great tool to help you remember your cues.
Sending via email
You might want to include more text on your slides so that the reader has all the information they need to understand the story without you there.
With all that said, be wary of where you place your text – avoid adding your copy over busy images or backgrounds to ensure everything is easily legible and to create maximum impact.