Public installation, 1984, Rio de Janeiro (exit of Santa Bárbara Tunnel)Stenciled graffiti, 1983, Rio de JaneiroFreehand graffiti, 1983, Rio de JaneiroThree-dimensional graffiti, 1983, Rio de JaneiroThree-dimensional graffiti, 1983, Rio de JaneiroDetail of installation with electronic signboard and two video monitors, 1984. Centro Cultural Candido Mendes, Rio de JaneiroVisual poem/Public installation project, 1982 (in Portuguese). Approximate literal translation: hollow is the sky