In 1936, the people of Spain rose up, overthrew their masters and took power into their own hands. In the villages and small towns of Aragon, they began to live in a way never seen before in modern Europe. Their ideal - libertarian communism. This detailed eyewitness account of the collectives in the heartland of the revolution shows how ordinary people, inspired by the anarchist principles of equality and solidarity, organised freely to build a new world, whilst resisting a bloodthirsty fascist uprising. It is a document of extraordinary importance; not only for the facts presented but because it informs the reader of today how, and in what circumstances, an idea regarded as purely utopian can become a reality.