Previously unpublished pictures of Marilyn Monroe are featured in a new book called Marilyn by Magnum that has been published to commemorate the 50th anniversary of her death this year. They were shot in her apartment in 1952 and were taken by renowned photographer Philippe Halsman. They were taken the same year she filmed Niagara with Joseph Cotten and picked up the lead role in Gentlemen Prefer Blondes – she was 26 at the time, a full ten years before her death.

The new book collates many of the pictures that were taken by members of the Magnum photographic cooperative, the world famous agency formed by four photographers – Robert Capa, Henri Cartier-Bresson, George Rodger and David “Chim” Seymour in 1947. Other contributors to the book (which contains 80 photos in total) include Elliott Erwitt, Eve Arnold, Inge Morath, Philippe Halsman, Bruce Davidson, Dennis Stock, Bob Henriques and Erich Hartmann.