My new essay called: ‘”They practice their trades in different worlds”: Concepts in Poststructuralism and Ordinary Language Philosophy’ is now available in the latest issue of New Literary History 40.4 (Autumn 2009), pp. 801-824. By focusing on their different views of concepts, the essay shows that Derrida and Wittgenstein have radically different ideas about what the purpose of philosophy is. The essay is an attempt to show why it is so difficult to have a meaningful dialogue between the two intellectual traditions. A pdf file is now available under “Essays”.