This book is the first comprehensive guide and introduction to the central theorists in the post-marxist intellectual tradition. In jargon free language it seeks to unpack, explain, and review many of the key figures behind the rethinking of the legacy of Marx and Marxism in theory and practice. Key thinkers covered include Cornelius Castoriadis, Jean-Francois Lyotard, Deleuze and Guattari, Laclau and Mouffe, Agnes Heller, Jacques Derrida, Jurgen Habermas and post-Marxist feminism. Underlying the whole text is the central question: What is Post-Marxism? Each chapter covers a key thinker or contribution and thus can be read as a stand alone introduction to the principal aspects of their approach. Each chapter is also followed by a summary of key points with a guide to further reading.