During the Civil War, when food was scarce and meals needed to keep for days, Union soldiers subsisted on an inexpensive, dense, cracker-like ration known as hardtack. A mixture of water, flour, and sometimes salt, hardtack became a metaphor for survival—soldiers found creative ways to eat the unappealing, dry mass, dipping it into their coffee or mixing it with salt pork.Much like its namesake, Hardtack, a monograph by Austin artist and photographer Rahim Fortune, explores the triumph and...