Some time ago, I was asked if a few of my images could be used in a magazine. "Sure!" I said. Then the editor asked me to write an article about the images.
Intrigued about doing something I know nothing about, writing an article, I went and bought "Complete Idiot's Guide to Publishing Magazine Articles" and then spent the next week writing an article you can read in 5 minutes. ;-) See page 18 of the magazine using the link below.