In this insightful book, Fields examines the ways in which the blocking off of open land has shaped human societies and landscapes, from the enclosures of common lands in medieval Europe to the contemporary processes of dispossession and displacement in the global economy. Fields explores the ways in which enclosure exacerbates inequalities and undermines democratic governance, as well as the urgent need for alternative visions of land use and resource management that prioritize the common good. In addition to its exploration of historical and contemporary issues, the book also raises important questions about the role of resistance and solidarity in confronting processes of enclosure and advancing struggles for social and environmental justice. Fields calls on readers to join movements for land reform, indigenous rights, and community-led development, emphasizing the importance of collective action in building a more just and sustainable world.