Based on the research and teachings of Christophe Girot, Professor and Chair of Landscape Architecture at ETH Zurich, cloud point technology is used as a tool for perception, communication, design, visualisation, and representation in Zürich’s urban landscape. This issue presents student projects on five unique sites, representing the city in multifaceted layers both above ground and underground. It also includes essays authored by various experts which provide different perspectives and reflections on spatial complex systems in the urban context, hinting at new possibilities for designing communication through digital models.