Stéphane Natkin is emeritus professor at CNAM (www.cnam.fr) in Paris and the founder of a Game Production Company “La Compagnie des Martingales”. He was the founder and the Director of the Graduate School on Games and Interactive Media (ENJMIN www.enjmin.fr). He is a member of the ILJ group in the Research Laboratory CEDRIC (http://cedric.cnam.fr), He was also a member of the board of the Cnam, Director of the CEDRIC and of the Computer Science department of the Cnam. As a member of the board of the Paris Digital Contents Cluster, Cap Digital (www.capdigital.com), he was the vice president in charge of universities and research laboratories of this Cluster. He works in the field multimedia systems, video games and both from the research and the industrial point of view. He is the author of numerous scientific publications in these fields. He was the founder of a security software editor CESIR and the manager of "La Galerie Natkin-Berta", an art gallery presenting modern paintings, sculpture and electronic art. He is the author of the book "Internet Security Protocols" DUNOD 2001 "Video Games and Interactive Media, A Glimpse at New Digital Entertainment", AK Peters, 2006. He is also the producer and one of the designers of the book "Sol LeWitt Black Gouaches".