Gilles Deleuze was Professor of Philosophy at the University of Paris VIII. He died in November 1995. Among his many works are The Logic of Sense, Difference and Repetition, and Nietzche and Philosophy, all published by Columbia University Press.Félix Guattari, a practicing psychoanalyst in Paris until his death in 1992, collaborated with Deleuze on four books, including Anti-Oedipus and A Thousand Plateaus.