Controversial Books of InterestMaus
by Art Spiegelman (graphic novel [comix] where Jews are mice, the Germans are predatory cats, the Poles are pigs)
There are some interesting commentaries on this book by Lawrence Weschler and a very complete WIKIPEDIA ENTRY.
L. Weschler article 1
L. Weschler article 2
L. Weschler article 3
The Painted Bird