To say that there are 50 million Latinos in the US is to suggest that the category of “Latino” is clear-cut and straightforward. But is that true? Tomas Almaguer highlights the ambiguities; he also examines how Latinos, a tremendously diverse population, have been racialized, and how they racialize each other. Almaguer brings up as key factors both the US Census and Spain’s colonization of Mexico and Puerto Rico.