How a magazine publisher challenged the conventions of legibility for the sake of style — In 1929 the Condé Nast publishing group brought Russian-born Mehemed Fehmy Agha—who had been working for the German edition of Vogue magazine—to America as art director for House & Garden, Vanity Fair, and the senior edition of Vogue. Considered avant-garde at the time, Agha introduced sans-serif typefaces, the practice of…