In this paper we present ECS Display, a large plasma screen that tracks the user's point of gaze from a distance, without any calibration. We discuss how we applied ECS Display in the design of Attentive Art. Artworks displayed on the ECS Display respond directly to user interest by visually highlighting areas of the artwork that receive attention, and by darkening areas that receive little interest. This results in asingly abstract artwork that provides guidance to subsequent viewers. We believe such attentive information visualization may be applied more generally to large screen display interactions. The filtering of information on the basis of user interest allows cognitive load associated with large display visualizations to be managed dynamically. Categories & Subject Descriptors: H.5.2. [Information interfaces and presentation]: User Interfaces. General Terms: Human Factors.