Stephan:   Being an experimentalist, I am focused on data, and all too aware of how numbers can be fiddled. This is a review of a book you might take a look at: The Dark Arts of Mathematical Deception By Charles Seife 295 pp. Viking. $25.95 Steven Strogatz is a professor of applied mathematics at Cornell and a contributor to the Opinionator blog on NYTimes.com. He is the author, most recently, of 'The Calculus of Friendship.