Human–Machine Reconfigurations revisits the relation between humans and machines by refusing the idea that technology is simply an instrument placed in human hands. Lucy Suchman is interested in the situated practices through which agency, action and intelligence are distributed across bodies, devices, interfaces, institutions and imaginaries. Her work challenges rationalist models of planning and communication, showing that action is not the execution of a pre-existing script but something negotiated within concrete situations. Machines do not merely serve human intentions; they participate in arrangements that redefine what counts as human competence, technical autonomy or interaction. The importance of the text lies in its careful dismantling of the fantasy of seamless human-machine communication. Suchman shows that interfaces are cultural and political sites, not neutral surfaces. They produce figures of users, agents, assistants and operators, and these figures carry assumptions about labour, gender, service and control. The book matters because it teaches us to read technology relationally: not as object, not as subject, but as a shifting configuration of practices and powers.