Neil Gaiman linked to a decent article on Will Eisner's new graphic novel. The novel takes a look at the famous racist propaganda piece "Protocols of the Elders of Zion" and shows how they were created. The last Eisner book I picked up was Dropsie Avenue, which traces a New York street from the first American settlers to the current residents.
Eisner's is always looking to push the boundaries of comics. I'm sure his new book will be worth your time.