I’ve been storytelling because I was a little lady. In grade school, we had book contests each year, and I would send a story together with illustrations on each page to highlight the words I had written (I won first place for a couple years!). Nowadays, it’s even simpler to write on the computer system, and digital pictures make including images to a story extremely simple!
Humans are natural born story lovers. In some cases our imagination comes up with images to go along with a story, but absolutely nothing beats pictures which inform us what the author truly has in mind.