This book explores how the concept or urban experimentation is being used to reshape practices of knowledge production in urban debates about resilience, climate change governance, and socio-technical transitions. The contributions from leading scholars and case studies from the Global North and South, from small to large scale cities, suggest that urban experiments offer novel modes of engagement, governance, and politics that both challenge and complement conventional strategies. The book is organized around three cross-cutting themes. Part one explores the logics of urban experimentation, through the different approaches of urban experimentation and how and why they being deployed. Part two explores how experiments being staged within cities, by whom, and with what effects? Part three examines how entire cities or groups of cities are constructed as experiments. This book seeks to contribute a deeper and more socially and politically nuanced understanding of how urban experiments shape cities and drive wider changes in society, providing a framework to examine the phenomenon of urban experimentation in conceptual and empirical detail.