This article is a critical review of The Technological Bluff, the last book on technology by Jacques Ellul. Although this work has attracted little attention, the concept oftechno-logical bluff1 provides a new perspective to understand contemporary technological society. After presenting Ellul’s exposition of the concept of techno-logical bluff, its original contribution to technology studies is emphasized. It is also examined how the analysis of techno-logical bluff is connected with other major Ellulian notions such as autonomous technique and the efficiency principle. (...) This is followed by a suggestion that the analysis of techno-logical bluff could function as a basis for a constructive dialectic relationship between classical and more recent discourses on technology. The last section is devoted to the Ellulian solution for the technological society suggested in this work, namely, the paradox of nonfreedom. (shrink)