This may be the first novel ever written that truly feels at home in our borderless, globalized, intermarried, post-colonial age, populated by “children with first and last names on a direct collision course.” Published when Smith was just 24, White Teeth follows the friendship of two Londoners, a pub-going working-class bloke named Archie and a Muslim from Bangladesh named Samad. Archie marries a Jamaican; Samad has twin sons, one of whom becomes a religious militant, the other a rabid Anglophile. The overlapping fates of Smith’s characters seem to trace the new structures of 21st-century life and test their sturdiness as framework for peace and happiness. Both deeply Dickensian and playfully post-modern, White Teeth doesn’t quail before the rampantly ramifying novelistic complexities of a multicultural world. It revels in them.