This symposium focuses on the iconographic 'substance' of images, their ambiguous materiality, and their equally-ambivalent media. In a joint symposium about images as phenomena of boundaries and paradoxical embodiment, this event attempts to critically review and ascertain the theoretical beginnings and departures of the Graduate Program’s conferences, workshops, and academic encounters. "At the Boundaries of Images" proposes a revision of the desire for a material and conceptual resolution to the problem of the image’s essential nature. The almost vague notion of scrutinizing images beyond their actual visibility and hence beyond their material intermediaries (screens, frames, walls etc.) reveals a perpetual desire to see beyond the visible and to disclose the "creativity of mediation" of media-as-carriers and their ability to transform their transmitted phenomena – images. This is not only the case with computer-based images, but it might be utilized as a theoretical approach to dissect the mediality of constructing and producing images in general, and perhaps even more so to critically re-read the legacy of illusion, thereby reviewing the terms and concepts of what is widely considered as 'media'; in other terms, revisiting the dilemma and obscurity of 'what is a medium?'