200% of Nothing: An Eye-Opening Tour through the Twists and Turns of Math Abuse and Innumeracy

A. K. DEWDNEY, Ph.D., is Associate Professor in the Department of Computer Science at the University of Western Ontario. Well-known for his popular "Mathematical Recreations" column, which ran in Scientific American for more than eight years, he is also the author of several books, including The Armchair Universe and The Planiverse: Computer Contact with a Two-Dimensional World.