Terry Tempest Williams is the author of 14 books, including Refuge, Leap, The Open Space of Democracy, and, most recently, Finding Beauty in a Broken World.
Thor Hanson is a conservation biologist and author of The Impenetrable Forest: My Gorilla Years in Uganda (1500 Books, 2008) and Feathers: The Evolution of a Natural Miracle (Basic Books, 2011). He lives with his wife and son on an island off the coast of Washington State.