The book The domain of the envelope shows how, in the modern project, the facade ceases to be a closing surface and is given an unprecedented depth, overcoming the idea of a two-dimensional plane and being configured as a volume, an intermediate habitable space, a device dual-function architectural: it links the exterior, but at the same time contains and protects the interior. All this is evidenced from the particular strategies of the facade solution in various architects and places in Colombia, at the same time that the features of local modern architecture are revealed in a transversal way.