Vittorio Sella (1859-1943) was the foremost mountaineering photographer of the late-nineteenth and early-twentieth centuries, producing widely celebrated images of K2 and other famed peaks. Sir Wilfred Thesiger (1910-2003) was a writer, photographer, and explorer, whose greatest journey took him across the Rub' al Khali, a vast desert encompassing much of the Arabian Peninsula. In his new book, Roger Härtl considers these two far-flung figures side by side, telling the stories of two influential explorers through their bibliographic and photographic work, and creating a tapestry where exploration, writing, and image-making all conjoin. As Härtl shows in this richly illustrated volume, the triumphs of Sella and Thesiger coincided with the end of a golden age of geographical exploration and with the rise of photography as we know it today.