This is the third design in the Celtic Cable Shawls collection.
This crescent shawl features an intricate cabled edging inspired by carved knotwork from a Pictish symbol stone. The lower edge of the shawl can either be left plain, or finished with a crochet chain cast-off; the body of the shawl is shaped with short rows.
Note that this is quite a small shawl: if you're concerned about it coming out too small, remember to check your gauge carefully before beginning (and block your gauge swatch!). For a larger shawl, you could work in a slightly heavier weight yarn (perhaps DK/light worsted), and slightly larger needles.
Because the cables are on a reverse garter st background at the lower edge of the shawl, there is quite a lot of purling. Also note that there are some WS cable rows, so this pattern requires quite a lot of concentration!
This pattern is both charted and fully written out.