Developed from the Tanner foundation lectures for 2016, The Will to Punish is a one hundred page essay which draws upon the author's perspectives as an anthropologist, an ethnographer, and a genealogist in the mode of Foucault and more especially Nietzsche to consider the nature of punishment in modern western, capitalist, societies. The argument was developed alongside the contributions of three North American-based scholars of the penal system, Bruce Western, Rebecca McLennan and David Garland, and it provides a punchy, challenging, vision of modern criminal justice and punishment from a critical point of view. It is organised around three basic questions: what is punishment? why does one punish? And who gets punished? There is a degree of overlap between the answers to these questions, since the what, the why and the who are necessarily connected, but overall, the framework of the lectures enables Fassin to launch a set of arguments that, while not necessarily novel, nicely bring out the different angles on orthodox positions that a critical perspective offers. It could be said to provide something of a state of the art summation of the general lines of critical thought, raising questions about critical method, what has been achieved, and what else there is still to do.