"He used his camera like a doctor would use a stethoscope in order to diagnose the state of the heart. His own was vulnerable.", Cartier-Bresson wrote about David Seymour, who liked to be called Chim.

Chim is best known as one of the cofounders of photojournalism’s famous cooperative Magnum Photos. Weaving Chim’s life and work, this book discovers this empathetic photographer who has been called "The First Human Rights Photographer".

In 1947, Chim was one of the four cofounders of the Magnum Photos cooperative with Robert Capa, Henri Cartier-Bresson and George Rodger. He also wrote Magnum’s 1955...