"City dwellers do not only live in uniformly mappable spaces that are equally visible to all. They also inhabit invisible, purely emotional spaces ... The paths that correspond in this intertwining, unrecognized poem in which each body is an element signed by many others, elude legibility. A space familiar to us from our everyday excursions and walks 'shapes itself' around us. It acquires a personal and emotional geography that functions as an affective framework for memories and expectations to take on quasi-spatial qualities. That space develops an invisible inner architecture, an extremely personal and unique network of thoughts and emotions. Those feelings and ideas are associated with the place where they were experienced. The myriad links within the network of one's personal history can connect the smallest details to remote feelings and bring them back when they are seen again. Janet Cardiff uses this affective experience of space in a highly evocative and varied manner throughout her audio walks."
–"Janet Cardiff: The Walk Book", by Mirjam Schaub, edited by Thyssen-Bornemisza