After the Decolonial examines the sources of Latin American decolonial thought, its reading of precursors like Fanon and Levinas and its historical interpretations. In extended treatments of the anthropology of ethnicity, law and religion and of the region's modern culture, Lehmann sets out the bases of a more grounded interpretation, drawing inspiration from Mexico, Brazil, Bolivia and Chile, and from a lifelong engagement with issues of development, religion and race.

The decolonial places race at the centre of its interpretation of injustice and, together with the multiple other exclusions dividing Latin American societies, traces it to European colonialism. But it has not fully absorbed the uniquely unsettling nature of Latin American race relations, which perpetuate prejudice and inequality, yet are marked by métissage, pervasive borrowing and mimesis. Moreover, it has not integrated its own disruptive feminist branch, and it has taken little interest in either the interwoven history of indigenous religion and hegemonic Catholicism or the evangelical tsunami which has upended so many assumptions about the region's culture.