A Naturalist at Large: The Best Essays of Bernd Heinrich

Born to Run

The Geese of Beaver Bog

80/20 Running: Run Stronger and Race Faster by Training Slower

Ravens in Winter

Running with the Kenyans: Discovering the secrets of the fastest people on earth

Racing the Clock: Running Across a Lifetime

The Elephant Whisperer: Learning About Life, Loyalty and Freedom From a Remarkable Herd of Elephants

Winter World: The Ingenuity of Animal Survival

Daniels' Running Formula: Edition 4

Mind of the Raven: Investigations and Adventures with Wolf-Birds

Shoe Dog: A Memoir by the Creator of Nike

The Trees in My Forest

Running with the Mind of Meditation: Lessons for Training Body and Mind

Eat and Run: My Unlikely Journey to Ultramarathon Greatness

Life Everlasting: The Animal Way of Death

The Rise of the Ultra Runners: A Journey to the Edge of Human Endurance

Summer World: A Season of Bounty

Finding Ultra, Revised and Updated Edition: Rejecting Middle Age, Becoming One of the World's Fittest Men, and Discovering Myself

One Wild Bird at a Time: Portraits of Individual Lives