How to Tie a necktie with a Pratt (or Shelby) knot

Need to know how to tie a necktie for a formal event like a wedding or fancy job interview? Try an old American classic—the Pratt knot (sometimes referred to as the Shelby knot). This video tutorial presents a careful, slow-motion overview of the knot tying process and will have you tying perfect Pratt-Shelby knots in no time at all.