Here’s a little find that a student researching his final paper on WWII sent to me. It comes fully stocked with all of the racist characterizations of the Japanese that one expects from the period. It may be the first cartoon that I have seen that addresses Japanese ritual suicide. (Warning: may be offensive to humans.)
As it so happens, I am reading David Livingston Smith’s book on dehumanization, Less Than Human: Why We Demean, Enslave and Exterminate Others. It’s quite good and, I imagine, very accessible for a variety of audiences.