Artwork: Michael Gross
I like this cover very much, even though it does give away an important plot point. It’s from the Equinox (USA) edition, published in 1975.
And I like the cover below too. When Harry said that Bill had two left arms, it never occurred to me that they could be on the same side of his body… 
Artwork: McMalken
This is from the Avon edition published in 1979.
