In *Le contrôle dans les systèmes à base de connaissances*, Bruno Bachimont offers a scholarly investigation of control within knowledge-based computational systems. The work examines how expert systems and other problem-solving approaches in artificial intelligence are structured, validated, and interpreted. It treats technical implementation alongside the assumptions that govern how knowledge is represented, activated, corrected, and used by machines. Bachimont places these systems within a broader reflection on the philosophy of technical knowledge, asking how control mechanisms shape reliability, explanation, and the mediation of human expertise. The book is suited to readers interested in the foundations of artificial intelligence and knowledge engineering, along with the epistemological questions raised by automated reasoning.