Mobilizations against world ordering often evade the concepts and categories available for comprehending them. Central to the praxis of many social movements is a challenge to ways of knowing that bolster or render invisible dominant relations of power. International political sociology has a fertile affinity with the often turbulent and transgressive praxis of popular mobilizations. Applying the insights of international political sociology to political mobilization runs against the grain of dominant approaches to resistance, in which the struggles of social movements are read off ready-made accounts of power. To engage practices of mobilization with a upon the disruptive and upon limits of preconceived categories also requires us to interrogate our own terms of engagement. Mobilizations are often pitched not only against relations of oppression, exploitation or domination, but also against the very concepts and categories through which such relations are rendered intelligible, natural or legitimate.