J. Kingston Pierce of The Rap Sheet has an ongoing series on “copycat covers,” books which (usually coincidentally, perhaps occasionally not) wind up using the same stock art and photography.
![shadow_dude shadow_dude](http://blog.bookcoverarchive.com/wp-content/shadow_dude.jpg)
I imagine that, for an author, seeing ones book here would feel like showing up at a party in the same dress as another attendant.