Longtime reporter Christopher McDougall is also a longtime runner -- and he brings his reporter's passion and eye for detail to the mysteries of running in his latest book. "Born to Run" examines humanity's inborn need to run and sweat, and it's filled with passion, odd facts, oddly pertinent digressions and deeply engaging journeys to running subcults (and cults-of-one). The book has inspired at least one fan site.

McDougall writes for Outside, Men's Health, New York and other magazines. His other, equally intriguing book, is Girl Trouble: The True Saga of Superstar Gloria Trevi and the Secret Teenage Sex Cult That Stunned the World.