While Mouffe’s concerns with power and discourse derive from her studies of Gramsci’s theorisations of hegemony and the post-structuralisms of Derrida and Foucault, her reversal of the very terms through which political theory proceeds is very much her own. She centres conflict, not consensus, and disagreement, not finality. Whether philosophically perfectionist, or liberally reasonable, political theorists have been challenged by Mouffe to think again, and to engage with a new concept of ‘the political’ and a revived and refreshed notion of ‘radical democracy’. The editor has focused on her work in three key areas: The volume concludes with a new interview with Chantal Mouffe.