To hear some tell it, Adolf Hitler was a Christian creationist who rejected Darwinian evolution. Award-winning historian Richard Weikart shows otherwise. According to Weikart, Darwinian evolution crucially influenced Hitler and the Nazis, and the Nazis zealously propagated evolutionary theory during the Third Reich. Inspired by arguments from both Darwin and early Darwinists, the Nazis viewed the "Nordic race" as superior to other races and set about advancing human evolution by ridding the world of "inferior" races and individuals. As Weikart also shows, these ideas circulate today among white nationalists and neo-Nazis, who routinely use Darwinian theory in their propaganda to advance a racist agenda. Darwinian Racism is careful history. It is also a wake-up call.