The library project for the puertorrican writer Mayra Santos-Febres was conceptualized through three fundamental principles:  context, materiality and program.  The project is located on the roof of an Art deco building in the Condado area, is a task that must consider the balance between the new and existing structures and its visual impact from the street. In search of a subtle dialogue between these two structures, a linear terrace removed from the edge of the building on the frontal part of the roof is proposed.  In the same manner, a minimalist language of clean and contained lines is expressed, emphasizing the use of different materials, colors and textures applied to vertical planes.  Furthermore, the project was conceptualized using the image of an open box full of books capable of containing and protecting the writer’s book and art collection, as well as her work in progress. At the same time, becoming a workspace full of light and views of the urban landscape.