This summary accompanies Cities and Flooding: A Guide to Integrated Urban Flood Risk Management for the 21st Century which provides forward-looking operational guidance on how to manage the risk of fl oods in a transforming urban environment and changeable climate. The Guide argues for a strategic approach to managing fl ood risk, in which appropriate measures are identifi ed, assessed, selected and integrated in a process that both involves and informs the full range of stakeholders. The Guide embodies the state-of-the art on integrated urban flood risk management. It is designed in a comprehensive and user-friendly way to serve as a primer for decision and policy makers, technical specialists, central, regional and local government offi cials, and concerned stakeholders in the community sector, civil society and non-governmental organizations, and the private sector.