“Elsa Schiaparelli: A Biography” (Knopf), by Meryle Secrest, out October 7th. Between the First and Second World Wars, Schiaparelli revolutionized the way women dress, but today, Secrest writes, “the most extraordinary fashion designer of the twentieth century is … just a name on a perfume bottle.” Perhaps that is why Secrest—who has also written books on Frank Lloyd Wright, Leonard Bernstein, Stephen Sondheim, and Modigliani, among others...