Brazilian artist Lygia Pape is known for creating highly politicized works in sculpture, engraving, performance, and film. In reaction to the Concrete art movement in Brazil in the 1950s, which decreed that art objects had no meaning beyond their physicality, Pape joined several contemporaries to form the Neo-Concrete movement, which emphasized the poetic, the personal, and the engagement of the viewer as integral components of artmaking. Livro do Tempo I (Book of Time I), 1961, in Glenstone’s collection, is composed of 365 unique wooden objects, or “pages,” representing each day of the calendar year. Using primary colors and geometric sequences, Pape invites viewers to create their own readings of the passage of time.

–Nora Severson Cafritz, from the Glenstone Field Guide