A man without a country
Vonnegut is often said to be Mark Twain's literary successor. I'm not convinced myself, but even if this is the case, then, well I've still got plenty of the original Mark Twain's work to read.
Towards the end of the book he seems to lapse into fairly uniform criticism of the USA, and at one points explains how he advises a new mother that the best she can do for her child is emigrate. In a way I prefer those Americans who are convinced that everyone else in the world wants to go and live there - at least I can laugh at them.