Off the subject but on this site: A list of Martin Gardner Puzzle Books: Martin Gardner's Collections of "Mathematical Games" Columns http://www.muppetlabs.com/

Off the subject but on this site: A list of Martin Gardner Puzzle Books: Martin Gardner's Collections of "Mathematical Games" Columns http://www.muppetlabs.com/~breadbox/books/gardner.html http://www.muppetlabs.com/~breadbox/books/gardner.html