Over the course of his six-decade-long career, photographer Richard Avedon worked with a tremendous range of portrait subjects: models, actors, ballet dancers, celebrities, civil rights activists, heads of state, inventors, musicians, visual artists and writers. He also frequently returned to the same subjects. Published for an exhibition at Palazzo Reale, Richard Avedon: Relationships spotlights these recurring figures: painter Jasper Johns in 1965 and 1976; novelist Carson McCullers in 1956 and 1958; the Beatles, Andy Warhol, Marilyn Monroe and Allen Ginsberg in 1963 and 1970. Perhaps his most intimate and enduring photographic relationship occurred with his friend and collaborator Truman Capote.