Latour rejects the social as a pre-existing substance capable of explaining action and instead treats it as the provisional effect of associations among heterogeneous actors. Humans, objects, technologies, documents and institutions participate in assembling situations, and agency is distributed across the networks through which action becomes possible. Actor-network theory proceeds methodologically by following controversies, translations and mediations rather than imposing explanatory categories in advance. Its most important operation is to slow analysis down long enough to observe how apparently stable structures are continuously composed. Intermediaries merely transport force, while mediators transform what passes through them; this distinction clarifies why objects and technical devices cannot be treated as neutral supports. Latour’s contribution is not a flat claim that everything acts equally, but a discipline of tracing how differences in capacity are constructed. The work bridges sociology, anthropology, technology studies and organizational analysis through a material account of collective formation.