The art of interpreting personal character based on facial and other physical features dates back to antiquity. About Face tells the intriguing story of how physiognomics became particularly popular during the Enlightenment, no longer as a mere parlor game but as an empirically grounded discipline.

Gray explains how physiognomics had by then become a highly respected "super-discipline" that embraced many prominent strands of German thought: the Romantic philosophy of nature, the "life philosophy" propagated by Dilthey and Nietzsche, the cultural pessimism of Schopenhauer, Husserl's method of intuitive observation, Freudian psychoanalysis, and early-twentieth-century eugenics and racial biology. A rich exploration of German culture, About Face offers fresh insight into the intellectual climate that allowed the dangerous thinking of National Socialism to take hold.