Mark Shaw is best known for his photographs of Jacqueline and John F. Kennedy, which he shot originally for LIFE magazine and later as the Kennedys’ “unofficial” family photographer. He developed a strong friendship with JFK and Jackie and regularly visited the White House during their time there. But Mark Shaw was first and foremost a Fashion and Advertising photographer whose freelance assignments for LIFE magazine had him photographing some of the most notable celebrities of the 1950’s.