NAZISMO ANTISEMITISMO "The ghetto of a Wermacht amateur photographer". Fourth panel of the exhibition "Lvov's Mona Lisa - Spontaneous images and texts related to the facts of the extermination": photographs taken in the Warsaw ghetto by Joe J. Heydecker (1916-1997). The original and innovative formula of the exhibition aims to approach the visitor through the vision of the images, to lead them to the reading of significant texts of which provides a brief excerpt, in a sort of analogical multimedia hypertextuality. Exhibition set up by the Valle d'Aosta Committee for the celebration of the 50th anniversary of the Resistance, Liberation and Autonomy, based on the conception and project of Ando Gilardi - National Historical Photo Library, in collaboration with the National Association of Former Deportates and with the Historical Institutes of the Resistance of the Valle d'Aosta and Novara. Aosta, April 1995