Future of this Site This site has been frozen in its current state. For more, please purchase Dino Franco Felluga, Critical Theory: The Key Concepts (Routledge, 2015). All information on this website was updated for the print book and most web definitions have been expanded. The book also fills in theory from 2001 to the present, including work by Giorgio Agamben, Alain Badiou, Bruno Latour, and many others. Whereas this website includes about 30,000 words of information, Critical Theory: The Key Concepts has 145,000 words of material. Still, there is some material included in this website that does not appear in the book (for example, the Lesson Plans).