Eternal Treblinka examines the origins of human supremacy and describes the emergence of industrialized slaughter of both animals and humans in modern times. The book concludes with profiles of Jewish and German animal advocates on both sides of the Holocaust.

The title is taken from a story by the Yiddish writer and Nobel Laureate Isaac Bashevis Singer: "In relation to them, all people are Nazis; for the animals it is an eternal Treblinka."

The Foreword is by Lucy Kaplan, a former attorney for People for the Ethical Treatment of Animals (PETA), who is the daughter of Holocaust survivors.