Book excerpt: This collection represents some of the latest research on Primo Levi, the famous Auschwitz survivor Italian author, in the field of Italian Studies, Holocaust Studies, Jewish Studies, literary theory, philosophy, and ethics. The author has collected an impressive group of scholars, including Ian Thomson, who has published a well-received biography of Levi in the UK (a US edition is due this year); Alexander Stille, who is a staff writer got the New Yorker as well as for the New York Times (he is also the author of Benevolence and Betrayal: Five Italian Jewish Families under Fascism ); and David Mendel, who knew Levi and had an extensive correspondence with the Italian writer. There are four essays on Levi's complex and fertile theory of the 'Gray Zone' and further essays on the myriad aspects of this thought. This is an excellent collection with new perspectives and interpretations of the life and work of Primo Levi.