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."

After nearly four decades as editor in chief, Anna Wintour is stepping aside from her signature role at Vogue. The 75-year-old will retain global responsibilities at Condé Nast as the magazine searches for a new editorial leader.