Jill Greenberg was hired by The Atlantic to photograph John McCain for a publication of the magazine. She did produce a photograph which The Atlantic will use; however, she also took photographs from the shoot for her own artistic exhibition which she shows on her web site.

I was interested in this wordpress blog which approaches this topic from standpoint of professional photographers. I have to admit, it never occured to me to think of the industry. It’s a good read.
Can a photographer be both an “artist” and a “commercial photographer”, simultaneously? Can they toe the line between the two disciplines?
Greenberg’s site is here.