The "decisive moment" is what counts, said the legendary photographer Henri Cartier-Bresson. For more than half-a-century, the theater photographer Ruth Walz schooled her eye to capture fleeting moments on stage so that they still grip us today. In doing so, she gives us exciting after-images of irretrievably lost theatrical productions. She provided audiences of the time with matchless memories and new insights; anyone looking at her pictures today undergoes a journey into the fascinating world of the theater. After working for around fifteen years as a photographer for the Schaubühne in Berlin, she spent the ensuing years accompanying directors, set designers, and actors on their paths through