Bryon Powell is a former Washington, D.C., attorney who left his job to devote himself to running ultramarathons full-time. He publishes the popular trail running and ultrarunning website iRunFar.com, and competes in ultras nationwide. His articles have been published in Outside, Running Times, Trail Runner, and elsewhere.
Patrick Lawlor has recorded over three hundred audiobooks in just about every genre. He has been an Audie Award finalist multiple times and has garnered several AudioFile Earphones Awards, a Publishers Weekly Listen-Up Award, and many Library Journal and Kirkus starred audio reviews.