Editorial - the architectural image and architectural memory; indexing visual databases of designs with diagrams, Mark D. Gross; recognition and retrieval in visual architectural databases, Alexander Koutamanis; document analysis - a way to integrate existing paper information in architectural databases, Karl Tombre and Jean-Claude Paul; visual displays for design - imagery, analogy and databases of visual images, Gabriela Goldschmidt; type representations in case-based design, Marc van Leusen; the reflective eye - visual reasoning in design, Robert M. Oxman; architectura cum machina - interaction with architectural cases in a virtual design environment, Gerhard N. Schmitt; construction technology in the electronic architectural studio, Spiro N. Pollalis; implementing an integrated environment for urban simulation - CAD, visualization and GIS, Robin S. Ligget and William H. Jepsen; opening DOORS - online access to design resources, Hinda F. Sklar; an intelligent architectural design resource, Alan H. Bridges and J.E.H. Mustoe; graphical knowledge interfaces - the extensive and intensive use of precedent databases in architecture and urban design, Bill Hillier et al; digital architectural photogrammetry and knowledge-based systems - record and redevelopment, Shauna M. Hill and Andre Streilein.