William Poundstone is an American author, columnist, and skeptic.
He has written a number of books including the Big Secrets series and a biography of Carl Sagan.
Poundstone attended MIT and studied physics.
[1] An enthusiastic fan of the fiction author Harry Stephen Keeler, Poundstone maintains the Keeler homepage and contributed to the anthology A to Izzard: A Harry Stephen Keeler Companion (2002).
He is a cousin of comedian Paula Poundstone.