Today, two major necktie knots are in widespread use. The first one is “The Four-in-hand knot”. It is a classic necktie knot that has been used for a long time. The second one is “The Pratt Knot” and is a more recent; it was introduced to the public in 1989. “The Four-in-hand Knot” is the easiest to learn. It is a small tie knot that suits shirts with a narrow collar opening and is suitable for most occasions. However, it is asymmetric, which does not look shirts good on wide collar . http://www.totieatie.com/ and http://briteties.com/index.ivnu