This paper discusses an alternative application area for ambient information systems, coined as ‘persuasive visualization’. It investigates the recent evolution of ambient displays, from simply aiming to inform people about data patterns towards increasing awareness of themes underlying the data. Accordingly, this paper proposes the potential of ambient display techniques to encourage users to modify their behavior. First, the evolution of past ambient display applications is analyzed according to their persuasive capabilities and environmental contexts, ranging from large-scale installations towards more personalized applications of ubiquitous and wearable computing. Accordingly, ambient displays could become a useful platform for unobtrusive, aesthetic applications that can augment our awareness and encourage positive behavior modifications relating to socially relevant issues. Keywords persuasive technology, ambient display, information visualization, wearable computing