John Muir (1838-1914) was a naturalist, author, and advocate for wilderness preservation. A prolific writer, his many books, essays, and letters abound with wit, humor, and an exuberant love of the natural world. Other John Muir books published by Heyday include The Essential Muir: A Selection of John Muir's Best (and Worst) Writings, and My First Summer in the Sierra.