White took a series of photographs capturing this evocative subject. A blind woman swaddled in a warm overcoat with a donation cup pinned to it sits at a busy street corner in Harlem, the neighborhood indicated by the delivery zone “27” painted on the mailbox behind her. She is consumed in her own world, her hands tracing the braille letters in the open book on her lap. White’s decision to photograph subjects unaware of the camera’s lens and the photographer’s gaze was a popular conceptual gesture for artists of the 20th century, who explored their ability to assume invisible, if not unbiased, positions.