Hurn became a member of the reputed Magnum photo agency in 1965. He also worked in the film industry, as a special photographer for films like El Cid, A Hard Day’s Night, From Russia With Love and Barbarella.
In the early 1970s, Hurn moved back to his native Wales, setting up the renowned School of Documentary Photography in Newport. His book On Being a Photographer, written in 1997 with Professor Bill Jay, is one of the most widely read textbooks on photography. Today, Turn lives and works from his home in Tintern, Wales, while teaching and exhibiting worldwide.