Hurting Your Eyes with Science Fiction

As a follow-up to the 3D Vintage SF classics, and this eye-warping SF cover from Gollancz, how about these upcoming Orbit paperbacks? It's a trilogy being released over three months, with nice optical illusion covers by Lauren Panepinto. (Click for bigger, thoroughly boggling versions.)

Laren has produced a number of other great covers, of which these are probably my favourites...