When I started working for Vanity Fair in 1995 I remember coming into the office one morning to discover that most of the senior editorial staff had disappeared. They weren’t at their desks, and phone calls went unreturned. Was this a Jewish holiday? It turned out to be the day Graydon Carter had set aside to write the ‘Editor’s Letter’, a monthly column at the beginning of the magazine signed by him but which he almost always asked one of his staff to write at the last minute.