The American artists who came of age in the 60s and 70s are the country’s greatest generation of artists. “They are men mostly, with big egos and big ideas. They were the first Americans to influence Europeans. The work these artists made changed, or at least questioned, the nature of art: what it looked like, its size, its materials, its attitude toward the places where it was shown, its relation to architecture, light and space and to the land. The artists even questioned whether art needed to be a tangible object. Minimalism, Post-Minimalism, Earth art, video art, Conceptualism – suddenly art could be nothing more than an idea, a thought on a piece of paper that played in your head. It could be ephemeral or atmospheric, like the experience of a room illuminated by colored fluorescent tubes.”