In this recent show Alfredo Pirri combined Minimalist and Conceptual elements in an environmental mise-en-scène. The exhibition’s title, Gas, intentionally refers to an operative but invisible energy that pervades the piece. In the first-floor space this energy was expressed through an investigation of the nature and the origin of reflection, analyzed within what Pirri calls the “system of illusion.” The theme of reflection has animated much of his work, and the current show functions as a critical analysis of illusion, effected through the transformation of illusory elements into actors in a