Wintour announced that Vogue will hire a US head of editorial content. People coming into a high-profile roles need to be strategic, experts said.

Dame Anna will be remembered for "the greater sense of informality that she brought to her early Vogue covers" and the tone they set, says Dr Kate Strasdin, senior lecturer at the Falmouth University's Fashion and Textile Institute. "She also pioneered the celebrity cover image, positioning popular culture beneath the famous Vogue banner."