Aside from the fact that it's not exactly the height of creativity to follow this trend ad nauseum, do the powers that be not realize that the eyes have it, that faces matter in human society? And please don't tell me "This way the children can imagine the characters how they want to," since I'm guessing that's mostly a way of justifying a graphic "look." Headless cover characters are very removed from readers and viewers. They have a kind of objectivity that makes them lack warmth. To me that's adult appeal, not kid appeal. I mean, it's an adult saying "How very artistic," not a child remarking, in traditional "Emperor's New Clothes" fashion, "But why doesn't she have a head?"
Let's acknowledge that our first introduction to a main character is often a face on a front cover (and woe betide the jacket artist who gives that character a completely different hair color than the author has written!). Are we going to come across Peter Pan in flight, but with his head lopped off? He might lose his feet, too, since the full trend is simply for "torso shots." It feels like a whole slew of main characters have turned into Greek statues, or fragments thereof.
In fact, I'm starting to picture an entire world of fiction with headless people walking around, topped off by pathetic little stumps. (I just can't bear to delete their feet, creating a nightmarish multiplicity of homages to that "Come back and fight!" scene from Monty Python and the Holy Grail.)
By way of contrast, scroll down and take a look at the jacket art in today's post. All right, so the Demon Princess has lost her chin, and the girl from The Awakening appears to have found it. (Plus I harbor suspicions that the Dead Is So Last Year still life is obliquely related to the Twilight jacket art.) But then, oh bliss! We have some actual people with complete visages. Don't know if Jacket Whys would agree, but I love both the Highway to Hell and Strange Angels covers, each powerful in its own way. (And speaking of Jacket Whys, I believe she addressed the torso issue a few months back.)
I suppose that, like every trend, this one will eventually shift in a new direction. In the meantime, I'm feeling very sorry for Winnie Foster and a slew of other main characters. It's as if the French Revolution had hit the bookstore!
P.S. Oops. Just realized I wrote this entire post without once using the word decapitation. So there you have it.