The Sirens of Titan by Kurt Vonnegut
Kurt Vonnegut is amazing. I remember tearing through most of his books in high school after reading Slaughterhouse-Five for English class. And although it’s hard for me to pick a favorite, The Sirens of Titan would have to be it.
The book follows Malachi Constant, the richest man in 22nd-century America, on his journey back and forth across the universe, where he ultimately ends up on one of Saturn’s moons, Titan.
If you haven’t read any Vonnegut, go do it now. You can find out more about The Sirens of Titan here.