The artwork "Polyvolume" by Maria Vieira transforms the functional space of a university library into a site of playful, collective creation. Installed in 1967, this towering silvery sculpture is not a static monument but an interactive instrument composed of 700 movable aluminum plates. By inviting library visitors to rotate its components, the work democratizes artistic form, making each user a temporary collaborator in shaping its ever-changing silhouette. This clever integration of art and architecture turns a transitional foyer into a dynamic social hub, where the act of study and contemplation is physically mirrored in the hands-on manipulation of knowledge and form. The sculpture's design, with its intentionally interrupted spiral seating, suggests that both learning and art are processes built through participation and occasional rupture.