'The collection of texts 'Conceptual Collage', on architecture and sustainability that I am commissioned to prologue, tests quan open and germinal is the stage on the paradigm of sustainability is debated. So open that I understand that the term sustainable is overwhelmed, perhaps fortunately, by the ecological condition or the different ecologies concerned'. Andrés Perea, architect and partner nº6 of ASA. 124 p .: 17x12 cm ., paperback