Is This a Good Author Photograph?

When University of Central Arkansas student Park Lanford took this picture of me a couple of weeks ago (for the school’s literary magazine, the Vortex), I immediately thought, “That looks like an author photograph.” My next thought was, “Why is that? What makes a good author photograph?” Do you need, if you are a man, to look somewhat craggy, earnest and intense, as I do here? Does it help to be bearded, as so many of the giants of literature in the past have been? I am being facetious, but you get my point.