Jiří Čtyroký is Director of the Spatial Information Section at the Prague Institute of Planning and Development. He focuses on building spatial data ecosystems and infrastructures as a foundation for data-driven urban development, evidence-based planning, and decision-support systems, with a particular emphasis on simulation modelling, urban analytics, and digital twins of cities to better understand and manage complex urban processes. He is responsible for the City of Prague’s GIS and spatial data development and has led key projects including the Digital Technical Map of Prague and the Central Bohemian Region, the 3D model of Prague’s built environment, the Geoportal of the City of Prague, and the Central GIS Data Warehouse of Prague. He actively contributes to national and European initiatives supporting the digital transformation of public administration, spatial data interoperability, and the strategic use of geospatial information.