Le présent dépôt ne comprend que le texte de la thèse. Les images, tableaux et cartes associés au texte feront l'objet d'un dépôt ulétrieur.As a part of the emerging discipline of art geography, this thesis is devoted to the artistic work of Christo and Jeanne-Claude which is known to the public by such masterpieces as The Pont-Neuf Wrapped or Surrounded Islands. This study bears upon the spatial dimension of the artistic production and upon the spatial dimension of the aesthetic response of a textile object in situ outdoors. In this respect, it relies on conceptual references to the theories of action such as they have engaged in geography for about ten years on the one hand, and, on the other hand, on the phenomenological approach which h...