One of the most powerful things about visual thinking is that it makes things simple. When things are simple, they're much easier to remember. And the more often you see something, the more likely you will be to remember it, too.
That's why simple posters are so powerful when working in person. And why simple online visuals are so powerful before and after events, or when you can't be face-to-face.
A super simple way to keep your visuals super simple is as easy as 1-2-3. Choose 1 central image. Use no more than 2 colors. And limit yourself to only 3 words. That's it!
That formula doesn't always work for everything, but it's a great place to start. Even if you have to sneak in an extra word or two, your visual will still be pretty simple.