Aaron Siskind's *San Luis Potosi 28* is a gelatin silver print that transforms a fragment of peeling paint or weathered surface into a bold, abstract composition. Siskind's close-up perspective flattens the subject into graphic shapes and textures, blurring the boundary between photography and abstract expressionist painting. The high-contrast black-and-white tones emphasize the raw, tactile quality of the surface, inviting viewers to engage with the image purely as form and gesture.