Our National Parks (Unabridged): optional

Death in Yellowstone: Accidents and Foolhardiness in the First National Park, Second Edition

My First Summer in the Sierra

Leave Only Footprints: My Acadia-to-Zion Journey Through Every National Park

The Yosemite

America the Beautiful?: One Woman in a Borrowed Prius on the Road Most Travelled

Wilderness Essays

Let My People Go Surfing: The Education of a Reluctant Businessman--Including 10 More Years of Business Unusual

A Thousand Mile Walk to the Gulf

The Anthropocene Reviewed: The Instant Sunday Times Bestseller

This Changes Everything: Capitalism vs. the Climate

Sand Talk: How Indigenous Thinking Can Save the World

Last Chance To See

Cry of the Kalahari

Never Cry Wolf

Not the End of the World: How We Can Be the First Generation to Build a Sustainable Planet

Pollution is Colonialism

The Intersectional Environmentalist: How to Dismantle Systems of Oppression to Protect People + Planet

Sacred Nature: Restoring Our Ancient Bond with the Natural World