Our cities are facing major crises: climate change, inequality, and ecological decline. Urban design as it is currently practiced is not sufficient. The authors of this book argue for the urgency of a radical redesign of our urban environment, they put forward the concept of deep conviviality – a vision for urban spaces where humans and non-humans can flourish together. This means embracing natural and social ecosystems as the foundation for design and seeing urban design as a bridge practice to dissolve contestations through spatial arrangements. Twenty thought-provoking design exercises explore what the city as a complex biotope could be like, inspiring action and creating change.