I really don't get when people refer to Vonnegut's stuff as parody or satire. Even weirder are the endorsing quotes that consistently mention how <i>side-splittingly hilarious</i> that particular book is. I mean, of course Vonnegut's funny, but it's not a boisterous kind of comedy by any means.

That said, you should read every single book the guy has written, preferably in the order he wrote them. They're wonderful. The lot of them.