Designed as a mid-size tower, the library can serve as a catalytic converter which reorganizes this space of collective activity in the Usera district, establishing it as a centrepiece and giving it urban meaning, connecting the adjacent parks, resolving inequality of the terrain and adding green and paved areas to create a larger entity. The interior spaces are perceived with an atmosphere in semi-darkness communicating with the exterior through isolated openings which permit to select fragments of the nearby or more distant surroundings. (source: Herreros Arquitectos’ website)