Which ingredients of a cooperative community project most help it succeed? What are urban commons and how do they fit into current activist and civil society debates? And what tools and methods do commoners need to strengthen their work? These are the three questions at the heart of The Urban Commons Cookbook, a handbook for those interested in starting, growing and supporting community-led projects. This book represents a first attempt to bridge the gaps between individual urban commons projects across resource types and geographical distances in order to show their commonalities and help them and new projects learn from each other’s experiences. Through a reader-friendly overview of urban commons theory, interviews with eight commons projects outlining the growth of their projects, the challenges they faced, and the methods they employed to surmount them, and a wealth of practical tools and policy suggestions, we hope to support commons projects and the cities that they enrich.