Knitting Stitch Patterns -- Rib Stitches

Rib knit patterns are used in different knitting. The rib stitch is often used on the edges of pieces,because it's stretchy and doesn't curl. Ribs consists of columns of knit stitches alternating with columns of purl stitches. The knit columns stand out at the front and the purl columns sink to the back. That ribbing is very elastic.
The number of stitches in a rib fabric can be even, for example knit 1, purl 1 (k1, p1), knit 2, purl 2 (k2, p2). Work a few simples of rib in different combinations to see the elastic effect of ribbing.
Ribs are usually worked on needles two sizes smaller than those used for stockinette stisch.
It is widely used for borders of garments, for cuffs and edging.