I like to call this design a ‘cheater mobius’ because the twist happens after you knit it! You knit this migrating rib pattern flat, making a wavy edge. When done, you put a twist in the scarf and join the live sts with the cast on stitches using kitchener stitch. On the right side, you can’t even see the join! Easy and fun to knit. Knowledge of a provisional cast on is needed.