Introduction - the choice of words. Part 1 Texts on architecture and the city: texts as "realizers", the "De Re Aedificatoria", inaugural text, the communal edicts and the fate of their argumentation, the pseudo-treatises of the Renaissance and the classical age; true and false Utopias, the "Utopia" of Thomas More, inaugural text, after "Utopia", from Theleme to Clarens, from the "Nova Atlantis" to contemporary futurology, rhetorical Utopias; texts as "commentators", the objectification of urban space, commentaries for and against the city. Part 2 The "De Re Aedificatoria" - Alberti, or desire and time: the architecture of the "De re Aedificatoria"; a theory of edification; the beautiful and its antinomies; Alberti and Vitruvius - of supra-structural borrowing; Alberti and Vitruvius - narratives and histories in the "De Re Aedificatoria"; the architect-hero. Part 3 "Utopia", or beyond the mirror: model space and spatial model - a phenomenological approach, protrait space and model space, a universalizable device, model and eternity, the "Pharmakon"; the mirror stage and the utopian stage; the mythic construction; More and Plato; More and the problematics of the Renaissance. Part 4 The posteriority of the two paradigms: the fate of the architectural treatises, the first generation, the vitruvianizing regression, two exceptions - the treatises of Perrault and Scamozzi; the resistance of the utopian figure, the reductive Utopia of Morely, the canonical Utopia - "Sinapia" and hyperspatialization. Part 5 A new figure in the making - drift and deconstruction: science and Utopia versus the architectural treatise - the fragmented treatise of Patte; pre-urbanism. Part 6 The theory of urbanism: the "Teoria" as paradigm, scientistic and scientific discourse, medicalization and Utopia, the dominance of the Morean figure - the pseudo-Albertian traits, the works of the "I" of the "Trattatisto"; other theories - from Sitte to Alexander, scientific discourse - simulations and realities, the predominance of the signs of Utopia, the pseudo-Albertian traits, variations on the "I" of the "Trattatisto"; "Ouverture" - from words to things; appendix - analysis of the construction of the "De Re Aedificatoria".