William Anastasi was a key figure amid the extraordinary flourishing of revolutionary artistic approaches that occurred in New York in the 1960s and early 1970s—a context that witnessed the rise of important strands of Conceptual art, Minimalism, Post-Minimalism, Process art, Institutional Critique, and other tendencies that have since become firmly entrenched in the art historical canon. Much of Anastasi’s production represents an exceedingly pure, uncompromising form of site specificity, in which the work is intrinsically contingent on the space, relying on the architecture for its existence. Conic Section consists of a variable number of steel rebar rods arranged against the floor and wall to create a graceful parabolic curve. Like Sol LeWitt, Anastasi encapsulates his work in the form of terse verbal instructions, which he refers to as his “recipes.” The simplicity and directness of this premise belies the wide variety of appearances that the work is capable of generating depending on its specific relationship to the floors and walls in question. Its appearance also hinges on the viewer’s bodily position and vantage point, seeming to change as one walks around the installation.