Podkayne of Mars

Podkayne of Mars by Robert Heinlein. 

Top: Berkley, 1970. Cover uncredited.

Bottom: Berkley, 1971. Cover uncredited.

There's probably about 40 covers for this book but I enjoy the juxtaposition here of what one might expect of this story depending on which cover they saw.

The Last Defender of Camelot

The Last Defender of Camelot by Roger Zelazny. Pocket, 1980. Cover: Carl Lundgren

Ringworld

Ringworld by Larry Niven. Ballantine, 1976. Cover: Rick Sternbach

Chthon

Chthon by Piers Anthony. Ballantine, 1967. Cover uncredited.

As far as I know this is Piers Anthony's first book.  It's about a woman who can only love when she's getting hurt.  I think he was better served moving to Xanth.

The Illustrated Man

The Illustrated Man by Ray Bradbury. Bantam, 1972. Cover: Dean Ellis

An excellent cover for an excellent book.

The Cat Who Walks Through Walls

The Cat Who Walks Through Walls by Robert Heinlein. Ace, 1985. 

This is the weirdest credit so far: "Cover: "For more information about the cover art please contact Glass Onion Graphics PO box 88; brookfield; CT; 06804"

Callahan's Secret

Callahan's Secret by Spider Robinson. Berkley, 1986. Cover: James Warhola.

 

Gotta love those wraparound covers.