Big Walls offers a unique view into a world of extraordinary high adventure, in which fiercely driven climbers scale the highest & most beautiful rock faces on the planet. In this book, renowned climber Paul Piana vividly recounts his & longtime climbing partner Todd Skinner's revolutionary first free-climbing ascents of the four premier rock faces of North America: El Capitan's Salathe Wall, the Direct North West Face of Half Dome, Wyoming's Mount Hooker, & the Great Canadian Knife. Demanding remarkable inner confidence & instincts honed over many years, these free-climbing ascents were accomplished using nothing more than the climbers' own strength & determination. Illustrated with 93 spectacular color photographs of these harrowing ascents, Piana's compelling narrative evokes the dramatic highs & challenging lows of their many adventures, from the heartstopping fall off El Capitan that broke Skinner's ribs & snapped Piana's leg in five places, to their euphoric arrival on the summit of Mount Proboscis. Filled with exciting detail that will appeal to mountaineering enthusiasts everywhere, Big Walls is a fascinating account of four supremely challenging climbs that are truly worthy of the term historic.