Richard Serra : Torqued Spirals, Toruses and Spheres, a paperback coffee table book. By Gagosian Gallery, published in 2001. First edition, 64 pages.
"...Serra has put our perception of things in tension with our conception of them: he invites our bodies, informed by materials and structures, to do the thinking, "to think on our feet." Over the past 30-plus years he has wrung many variations on this theme, sometimes simple and direct, sometimes complex and elaborate."