A Naturalist at Large: The Best Essays of Bernd Heinrich

Born to Run

Racing the Clock: Running Across a Lifetime

Eat & Run: My Unlikely Journey to Ultramarathon Greatness

Ravens in Winter

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

The Geese of Beaver Bog

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

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

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

Winter World: The Ingenuity of Animal Survival

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

The Trees in My Forest

Daniels' Running Formula: Edition 4

Shoe Dog: A Memoir by the Creator of Nike

Life Everlasting: The Animal Way of Death

Runner's World Run Less, Run Faster: Become a Faster, Stronger Runner with the Revolutionary 3-Run-a-Week Training Program

Summer World: A Season of Bounty

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

One Wild Bird at a Time: Portraits of Individual Lives