A.J. Jacobs

AJ Jacobs is an author, philosopher, prankster and journalist. He has written three New York Times bestsellers: The Year of Living Biblically, The Know-It-All and The Guinea Pig Diaries. His upcoming book is titled The Healthiest Person Alive, and is about his attempt to be, well, the healthiest person alive. He has changed everything from his diet to his attitude to his behavior to the type of shoes he wears.