Architect Cristina Albornoz Rugeles studies a decisive formation period in the life of Rogelio Salmona. Testimonies, archival documents and images complement and illustrate the most relevant events that occurred in the stage prior to his professional practice in Colombia and anticipate his consistent position and the approaches to architecture and his idea of the city. In conversations with the architect, the book recovers early experiences in which the role played by French art historian Pierre Francastel and the impact of his courses at the Sorbonne, as well as his study trips and his experience in Le Corbusier workshop, are highlighted. These experiences were concretized in the visual and bibliographic material that Salmona brought to Colombia to dictate the courses in History of Architecture at the Universidad de los Andes. A percentage of that recovered material can be seen in this publication. "On the rue de Sèvres he draws and in the Sorbonne, he contemplates projected drawings. And all the drawings he makes are by commission, because Francastel, like Le Corbusier, wants to see the movement of Salmona's hand." (HKB translation) --Page 15.