Vito Acconci (b. 1940) is known as a conceptual designer, installation and performance artist. In the 1960s he embraced performance in order to "define my body in space, find a ground for myself, an alternate ground from the page ground I had as a poet." Acconci’s early performances, including Claim (1971) and Seedbed (1972), were extremely controversial, transgressing assumed boundaries between public and private space and between audience and performer. Positioning his own body as the simultaneous subject and object of his work, Acconci’s early videotapes took advantage of the medium’s self-reflexive potential in mediating his own and the viewer’s attention. Consistently exploring the dynamics of intimacy, trust, and power, the focus of Acconci’s projects gradually moved from his physical body (Conversions, 1971) toward the psychology of interpersonal transactions (Pryings, 1971) and, later, to the cultural and political implications of the performative space he set up for the camera (The Red Tapes, 1976). Since the late ’70s, Acconci has designed architectural and installation works for public spaces.