This paper contributes to a burgeoning literature on the politics of knowledge in the production of management textbooks. We explore the representation of race and ethnicity in the world’s best-selling organizational behaviour textbook, with a particular focus on editions produced for Brazilian business students. Through a decolonial lens, we explore how these textbooks reproduce the structural silencing of difference and reinforce inequalities. We consider the implications for Brazilian students, and possibilities for representing diversity in fairer ways, that better acknowledge the Brazilian context and the contribution of Brazilian scholars and affirm the potential of management education to foster critical and creative thinking and emancipatory values.