Sid Grossman and his photographs were largely forgotten after his untimely death in 1955 at the age of forty-two. One of the founders of the left-leaning Photo League (1936–51), Grossman was labeled a Communist and blacklisted in 1949. A demanding and capricious teacher who challenged his students to think critically about all aspects of their photography, Grossman’s own approach to image-making and his remarkable body of work were constantly evolving.