Ten Ways to Write a Bestselling Novel:
6. That brings to mind another point: the author bio photo. The less you look like someone who actually writes, the better. The only exception regards novel/memoir writers, who are allowed to look like writers due to the abuse they’ve heaped upon themselves, either literally or not. If writing a romantic novel, get out the makeup. Red hair is preferable. Make sure the photographer uses a special lens that will cause viewers to suspect they have some sort of visual problem that corrects all defects.
Also: “pose with your eyeglasses off, holding them in hand with one stem in the mouth, as if you’re about to eat your spectacles.”