In paperback, by Kurt Vonnegut
"The Sirens of Titan" is an outrageous romp through space, time, and morality. The richest, most depraived man on Earth, Malachi Constant, is offered a chance to take a space journey to distant worlds with a beautiful woman at his side. Of course, there's a catch to the invitation...and a prophetic vision about the purpose of human life that only Vonnegut has the courage to tell.