Keywords: Arendt; Public Sphere; Visible; Invisible; Totalitarianism.
This article analyses Arendt's concept of public sphere in the perspective of her political phenomenology. It focuses on the way Arendt sets politics into the correlation between the Visible and the Invisible, which characterises the world as the horizon of human existence. The article stresses the influence of the philosophy of Nietzsche, Heidegger and Merleau-Ponty on this specific level of Arendt's political thought. It aims to show that this political phenomenology is a pivotal dimension of Arendt's Philosophy, especially of her interpretation and conceptualisation of totalitarianism, which is a form of government characterised by the project of total domination, that is by the attempt to pass every boundary, also the boundary that separates the Visible from the Invisible.