Often picking up the slack from other public institutions, the contemporary library—one of the last free public spaces in the metropolitan city—has been making the transition from an archive of knowledge into social infrastructure. Taking the introduction of a new library as an opportunity to upgrade the site and neighborhood at large, this scheme transforms a large stretch of the existing park into a coherent agglomerate of programmed and unprogrammed spaces for physical activities, knowledge production, social services, and community gathering. Each pavilion under the continuous floating canopy uniquely harvests natural light, thus allowing the level of reflections and transparency to constantly fluctuate throughout the day from morning to night, and vary among different seasons of the year. The intangible and immaterial thus become as integral a part of the architecture as the steel columns and concrete floors.