Book of the XX biennial of architecture and urbanism of Chile. Thinking about what we consider to be urgent from architecture and urbanism presents us with the urgent need to work with those who, residing in the margin, have not seen their aspirations reflected in the urban. This book is a sample of the works that from architecture, urbanism and art, have incorporated the most neglected in their own development.

The book is structured in seven unpostponable themes: identity; the usual; the participation; the integration; the vulnerability; the resources; the future.