How to I wrap text around an image?

I see an answer to this question here, but I don’t understand it.

I’m doing an “about” page with a picture of the author and I’d like to text to wrap around the image of the author. That all can be static.

In addition, I’m setting up a blog where each blog post will have an image with it and I’d like the text of each post to wrap around the image in the post. If the only solution is the one in the answer I’ve referenced, it would be great to have some more detailed instructions on how to do it. I’d be very grateful.

Maybe there’s a plugin someone could suggest? Much appreciated.!