Knot weaving skill is the most widely used method of making a carpet. There are different ways of knot weaving but basically Persian knot and Turkish knot are one of the most popular ones. Persian knot is symmetric whereas , Turkish knot is not.
Persian knot One piece of strand is wrapped around another warp yarn and then passed under its adjoining warp yarn. The two ends are brought to surface separately, creating better-look designs. Persian knots matches asymmetrically beside the other strings of a basis; the first nap yarn twists one string of a basis entirely whereas the second - only half only.
Turkish knot To form a symmetric knot, one piece of strand is wrapped over two adjoining warp yarns and both ends of the strand are then pulled back together to surface between the two warp yarns. Both strings of a basis are completely twisted with a nap yarn.