The impossible climb

"In [the author's] unique window on the ethos of climbing, his friend Alex Honnold's . . . 'free solo' ascent of El Capitan's 3,000 feet of sheer granite, is the central act. [He] delves into a . . . culture that emerged decades earlier during Yosemite's Golden Age, when pioneering climbers like Royal Robbins and Warren Harding invented the sport that Honnold would turn on its ear"--Provided by publisher.