The Pratt knot is a method of tying a tie around one’s neck and collar. It is also known as the Shelby knot and the Fishing knot tying guide pdf-Shelby. The knot was created by Jerry Pratt, an employee of the US Chamber of Commerce.
It was popularized as the Shelby knot after then 92-year-old Pratt taught it in 1986 to television reporter Don Shelby who he felt had been tying his tie poorly on the air. Shelby then refined the Pratt knot with local clothier Kingford Bavender and wore it on the air with a spread collar where it stood out and attracted attention for its symmetry and trim precision.
The knot was considered revelatory although strictly speaking it is a variation on the Nicky knot, notable for being tied inside out. 188 Knots for Necks, by Davide Mosconi and Riccardo Villarosa in Milan, Italy. The Pratt knot is unusual in that its starting position is ‘reverse side out’, like the Nicky knot, a self-releasing variant of the Pratt. It uses less length than the half-Windsor or Windsor knots, and so is well suited to shorter ties or taller men.