John Allen Paulos, bestselling author, mathematician, and public speaker, is professor of mathematics at Temple University in Philadelphia. In addition to being the author of a number of scholarly papers on mathematical logic, probability, and the philosophy of science, he has written Mathematics and Humor; I Think, Therefore I Laugh; Innumeracy – Mathematical Illiteracy and Its Consequences; Beyond Numeracy – Ruminations of a Numbers Man; A Mathematician Reads the Newspaper; Once Upon a Number; A Mathematician Plays the Stock Market, and Irreligion:A Mathematician Explains Why the Arguments for God Just Don’t Add Up. He also writes the “Who’s Counting” column for ABCNews.com.