The book is based on the idea that the model can be considered not only as a tool for representing architecture that aspires to objectivity, but also as a potential conceptual device capable of making ideas visible. The research focuses on a dual question regarding the possibility for the model to reveal itself as a tool that can reveal the formal generative process of architectural design on the one hand and as a conscious contribution to the construction of the design idea on the other. The physical model appears as the most effective working tool for the main characters of contemporary architectural culture. The model is in fact able to ensure the spatial control of three-dimensional simultaneity while also making the generative process visible by telling the story of the project. The research of some contemporary architects such as David Chipperfield, Peter Eisenman, Sou Fujimoto, Frank O. Gehry, Herzog & de Meuron, MVRDV, OMA, are analysed in the light of these hypotheses and verified through the testimonies offered by some of them in the interviews published here.