The complex of the Central Library and Municipal Archives with continuous sinusoidal wall will become an urban icon in a setting that has no representative landmarks, reinforcing the cultural-institutional character of the building. Morphologically, the exterior skin mimics book spines sculped in large multicoloured ceramic bricks of great format.

On the outside the building has an institutional appearance. As we approach the interior, however, it becomes more playful and cheerful, but without losing the general conception that a building of this scale represents to the neighbourhood.

The façade-sculpture has its counterpoint in the Archive building, which also features a sinusoidal envelope of zinc sheets mimicking bundles of files, thus making it a true repository of memories. The colours used create comfortable spaces and are conducive to productivity and a more pleasant atmosphere for work and study. In the interior, however, colour was used more sparing and austere to bathe the premises in natural light and promote concentration for the study.

Functionally the library distributes the uses in 3 floors and a basement. In the ground -floor we find the exhibition hall, conference room, younger library, childhood library and a baby one, offices and the central atrium. The first and second floor locate adults library, meeting rooms, mediatheque , cafeteria and offices. In the archives we have also 3 floors. The ground – floor was designed for public spaces. The rest of the building is just for classified workers as the function of an archive is very restricted. The two buildings develop its activities independent. They only share the basement where is located services and uses in common.