On 11 April 2002, 500 volunteers gathered in front of an enormous dune on the outskirts of Lima, Peru, with spades in their hands. Their aim was to move the dune a few centimetres. This gigantic action, thought up and orchestrated by the artist of Belgian origin, Francis Alÿs, and the art critic, historian and writer, Cuauhtémoc Medina, is captured now in a book with a large number of photographs and texts by Susan Buck-Morss, Gustavo Buntix, Lynee Cooke, Corinne Disserens, Gerardo Mosquera and Augusto Monterroso. Interviews with Alÿs and texts by Medina round of this book-testimony, which is also a reflection on the mythical potential of collective actions, strength of will and the capacity to create stories that end up forming part of the oral tradition of nations. Accompanied by a 15-minute dvd.