In the days immediately after the attacks of September 11, most major magazines temporarily stopped printing. When publication resumed, editors faced the difficult task of capturing the national mood on their covers.
Many of those images have become iconic. Art Spiegelman and Françoise Mouly's famous New Yorker cover was one of the most striking responses to the attacks, while the man on the cover of Fortune became a face of tragedy.
"When you look at the covers, it immediately brings back that sense of where were you and what were you doing then and since then," Sid Holt, the chief executive of the American Society of Magazine Editors, said in September 2011.
Holt compiled close to one hundred 9/11 magazine covers to commemorate the 10th anniversary of the attacks last year. Below, take a look at how some of them covered September 11.