It is an institution that seems almost hopelessly out of date, a social relic of bygone times. The very word "debutante" evokes images of prim, poised beauty, expensive gowns, and sumptuous balls, all of which seem anachronistic in these post-women's liberation times. But as Karal Ann Marling reveals, debdom in America is alive and well and ever evolving. For thousands of young women every year, the society debut remains a vital rite of passage,...