The late CORNELIUS CASTORIADIS (1922—1997), a Greek-French political thinker and longtime militant, as well as economist, practicing psychoanalyst, and philosopher, former Director of Studies at the École de Hautes Études en Sciences Sociales, has been published extensively in English, including The Imaginary Institution of Society; World in Fragments; Writings on Politics, Society, Psychoanalysis, and the Imagination; and Figures of the Thinkable.