The third volume of the 'Quaderni' presents the reflections of the architect-professors who comprise the Faculty Board of the Mendrisio Academy of Architecture-Universita della Svizzera italiana. This is not the customary exposition by the members of the Faculty Board of the Mendrisio Academy of Architecture-Universita della Svizzera italiana, of their vision of the discipline and professional practice of architecture. The contributions embody such themes in varying degrees, but above all they present the cultural frame of reference that each architect believes to be the most significant in explaining his or her personality. The term 'atlas' in the title should therefore be understood as the set of formative lessons, technological and historical curiosities, aesthetic explorations and intellectual orientations that form the expressive canon of each architect. Text in English and Italian.