Frederic Neff is the program manager at the School of Advanced Studies in Social Sciences (l’École des Hautes Études en Sciences Sociales – EHESS). He manages the program Logic and Ontology of Social Objects. His last published book was Traité d’Ontologie pour les non philosophes (et ceux qui ne le sont pas), Gallimard, Paris, 2009. He published Les êtres sociaux with Pierre Livet. Processus et virtualité, Hermann, Paris, 2009. A study on the logic and ontology of emptiness is published in November, La Force du Vide, Editions du Seuil, Paris. Together with Isabelle Pariente-Butterlin he translated Glock, What is Analytical Philosophy? (Qu’est-ce que la Philosophie Analytique? Gallimard, Paris, 2011).