The Wellek Library Lectures from which these two books developed were given in 1996. The English version (2015) translates the material of the lectures that address the themes of “the conversion of violence,” in particular in the philosophies of Hobbes and Hegel, and of “inconvertible violence.” “Inconvertible violence” signals those forms and practices of violence that annihilate possibilities of resistance, that cannot be arrested by political power and transformed into civil and social exchange. The French version (2010) includes a second part made up of further essays—on Clausewitz, Marxism, Lenin and Gandhi, and Schmitt and Hobbes—in which Balibar continues to wrestle with the categories “violence” and “politics” and the complex, elusive relationships between them.