Even the title of Cohen 's book and its cover art--a brass-knuckled fist--are lifted directly from a book published eight years ago , Paul Breines ' Tough Political Fantasies and the Moral Dilemma of American Jewry , which analyzes the psychological underpinnings of the cult of Jewish toughness born after Israel 's victory in the 1967 Six Day War .
On the cover of Cohen 's book is a depiction of a brass-knuckled fist .