Sarah Jane Vowell (born December 27, 1969) is an American author, journalist, essayist, social commentator and actress. Often referred to as a "social observer," Vowell has written seven nonfiction books on American history and culture. She was a contributing editor for the radio program This American Life on Public Radio International from 1996 to 2008, where she produced numerous commentaries and documentaries and toured the country in many of the program's live shows.