Afrocentrism. Eurocentrism. Caribbean Studies. British Studies. To the forces of cultural nationalism hunkered down in their camps, this bold hook sounds a liberating call. There is, Paul Gilroy tells us, a culture that is not specifically African, American, Caribbean, or British, but all of these at once, a black Atlantic culture whose themes and techniques transcend ethnicity and nationality to produce something new and, until now, unremarked...