RocRoc is the reference work for all climbing and adventure enthusiasts, amateurs and professionals alike. Unique in its kind, it tackles all forms of rock climbing, from the great alpine routes to the modern lines of "Trad", where the climber is the only actor of his safety. Through different chapters on history, playgrounds, equipment and techniques, Jrme Blanc Gras and Manu Ibarra, both mountain guides, trainers and developers of mountain equipment,