Anna Wintour, the iconic yet elusive fashion leader, is made more tangible in the latest biography cataloging her life, "Anna wintour: Biography"Wintour, 72, has expanded her career as editor in chief of Vogue magazine over several decades to become a gatekeeper and curator of the fashion industry. The British-born editor and Cond? Nast global chief content officer carries a reputation of prestige and authority through her high-profile relationships...