Philip K. Dick

The cover of Philip K. Dick's 1965 sci-fi novel The Three Stigmata of Palmer Eldritch.

The novel, set in the 21st century, is a mind-bending stew of interplanetary travel, global warming, addictive drugs, hallucinations and office politics -- that is, a typical Philip K. Dick story.

(Cover photo courtesy of Doubleday Books, in a scan from the Philip K. Dick Bookshelf at pkdickbooks.com)