Gerda Taro was a pioneer photojournalist--the first woman to photograph in the heat of battle--whose legacy, cut short by her untimely death at the age of 27, consists almost exclusively of photographs from the very front lines of the Spanish Civil War, one of the twentieth century's most important conflicts. Taro's images are a little-known record of a pivotal moment in the history of war photography, though she worked alongside the legendary photojournalist...