400 pages, Hardcover: From a colossal work of archives, from 1984 to today, and with a thorough knowledge of the discipline and its masters, in 400 pages, the author speaks with many of the major players in this mysterious and underground scene. More than 1200 photos, documents, newspaper articles. Testimony of officials, inspectors of the RATP and photographers. A journey into a world unknown and fantasy, of lives dedicated to a prohibited activity that does not pay. The book also offers, a reflection on art, the position of the artist, the understanding of the law and forbidden, and the consequences of the creation, its place in life .. .