Rock-and-roll photographer Jim Marshall died on Tuesday at the age of 74. If you’re not familiar with the man himself, you’ve certainly seen his work: he was an official photographer of the Woodstock Festival, the only photographer allowed backstage at the Beatles’ final concert in 1966, and he shot more than 500 album covers. Marshall was known to gain intimate access to the musicians, sometimes even going so far as to live with them, in order to create truly vulnerable portraits. He continued to work after the days of psychedelics and electric guitars, and more recently worked with the likes of John Mayer and Ben Harper. Marshall was scheduled to promote his new book Match Prints this week, written with fellow photographer Timothy White.