This epilogue examines the relevance of imagery in modeling processes in architecture, design, and engineering. In addition to the description of the current state of research, it includes the changes brought about by the use of computers and outlines the different forms and functions of design models to discuss the role of operative imagery in this context. A look at the contributions in this volume reveals that computer-based modeling is not repressing image-based practices. Rather, they are complemented by new forms, which overall strengthen their significance. Thus forms of imagery are crucial reflection tools at the operative level and with their help, design projects in architecture, engineering and design are developed, particularly also in the age of modeling.The digital turn in designing seems to be characterized by a paradox: the success of modeling is simultaneously the success of imagery. The extensive use of computer-based models has not lessened the importance of image-based practices. On the contrary, as the examples in this volume make clear, new forms of image use are added to architecture, design, and engineering, without older forms losing their importance. Modeling processes are not only embedded in imagery phenomena, but they depend on the implementation of the latter. This intimate integration may seem strange at first glance, given that the relation between model and image is often characterized as a strong opposition. Predictability, precision, and scientific criteria are seen in opposition to intuition, vagueness, and design demands. This impression changes rapidly when imagery and modeling are examined from the perspective of their use. Then design artifacts and the processes and practices related to them come into focus. Precisely the perspective of operativity, described in this book's essays, is what opens a new set of questions that go beyond the established dichotomy.The fascinating richness of different forms of images and the enormous range of image functions comes to the fore, and their relevance in design processes cannot be better made clear. This epilogue considerations examine the relationship between imagery and modeling in design considering the current state of research in order to more accurately determine the growing significance of images.A shift in meaning and its consequences. Supposedly, through computation the traditional relationship between imagery and modeling is turned upside down. Since the Renaissance, drawing methods have allowed the carrying out of precise and complex design tasks on a sheet of paper using pen, ruler, and compass. 1 The emergence of the professions, in combination with the creation 1 Maya Hambly (1988), gives an overview of historical drawing instruments.