This book focuses on the phenomenon of art intervention—an expression of local initiatives by artists, collectives, and art centers wishing to influence the design of the space or make a change in its lifestyle. It pertains not only to acts of protest, but also to the creation of a new civil and political situation in which artists acknowledge their ability to constitute foci of power. These are reflected in acts such as squatting in abandoned buildings, restoring and redistributing them according to principles of social justice; mapping the city based on alternative parameters, such as revealing venues of collective memory or exposing the city's backyard; creating outdoor urban art galleries; and creating temporary architecture and alternative solutions in order to deal with the challenges we face in times of epidemic and environmental crisis.