John Allen Paulos
John Allen Paulos

A professor of mathematics at Temple University, John Allen Paulos is the author of Once Upon a Number. He presently has a monthly column on ABCNews.com.

The Breakfast Table
June 23 1999 1:06 AMDissecting the Day's News
  Slate Plus
Technology
Aug. 26 2015 12:11 PM Slate Voice: “Space Invaders” Never, ever use two spaces after a period: Listen to Mike Vuolo read Farhad Manjoo’s classic takedown of an enduring typographic sin.