"Artists such as Jackie Winsor, Keith Sonnier, Alan Saret, Richard Serra, Eva Hesse, Barry Le Va, Joel Shapiro, Bruce Nauman, Lynda Benglis, and John Duff were not only dedicated to extending the principles of literalness into new materials, but were also caught up in the zeitgeist of the era???the political changes, the cultural revolution, the emerging feminism, the awareness of environmental iss" . . . . . . . . . .