Here we have aerobicizing angels*:
And here are some naked blue women dancing around a planet shaped like a woman's head. Nice makeup there.
In case you're wondering, Spider Robinson is one of my favorite Sci-Fi authors. His Callahan series is brilliant and funny and sexy and alcoholic...I mean, the two related locales are a bar and a whorehouse, what could be better?! But I would never, ever, ever, ever, in a million years, ever read this book if I just had to cover to go on.
And what is with the Baen ball? What is that, a squid? How do you pronounce Baen, anyway? These things keep me up at night.
*Thanks to diligent page Jeremy for showing me this cover. I am now scarred for life.