A founding member of Brazil's Neo-Concrete movement, Lygia Pape (1927–2004) made art that favored the primacy of the viewer's sensorial experience. Pape's geometric abstractions explore rich territory through sculpture, drawing, engraving, filmmaking and installation. This publication brings together works spanning 1955 to 2001. The precise incised lines of Pape's Tecelares woodcut prints and drawings of the 1950s and '60s marry pure geometry with organic patterns. Her subsequent Ttéia installations (begun in the late 1970s and continued throughout her career) present captivating explorations of geometry, space and materiality. Installation views and detail shots of these works complement texts by Briony Fer and Daniel Birnbaum, two ardent followers of Pape's work.