The fisherman's rib stitch (also known as the English rib) is a popular pattern because of the chunky and reversible ribbed texture it produces.

Below is the written pattern (for flat knitting), as well as a video which walks you through the pattern step-by-step.

First, you need to cast on an even number of stitches.

Then do one 'setup row' of purl stitches. This row won't be repeated.

Then follow this pattern repeat for every row:

*p1, k1b

Repeat from * until last 2 stitches, then p2

(Where k1b = a 'knit 1 below' stitch)

And that's all you do, on every row!

To bind off, you do the usual knit bind off technique, except that instead of just using knit stitches, every other stitch will be a k1b rather than a k as follows:

k1, k1b, pso *k1, pso, k1b, pso

Repeat from * to end of row.

(Where pso = pass the (k/k1b) stitch over)

Since this rib stitch is stretchy, we don't want the bound off edge to be tight, as this will restrict the stretchiness. Instead, try and bind off quite loosely.