Packaged in a sturdy, full-color slipcase, this thoughtfully curated set contains a unified series of great wilderness and nature classics, with handsome covers and whimsically illustrated end papers. John Muir's 1901 Our National Parks is joined by an updated edition of the 1980 collection Wilderness Essays, in which Muir ranges from Alaska to Yellowstone, from Oregon to the High Sierra. Here too is Mark Twain's Roughing It (1872), remarking on a long stagecoach journey, a stint of gold and silver mining, and a voyage to Hawaii. The fourth volume is an updated collection of writings by Henry David Thoreau, Natural History Essays.