Cambium is a fun sock with simple twists combined with dropped stitches. The pattern continues down the foot to form a vee. This is a top down pattern. A fun pattern for either variegated or solid yarns.

Errata in print version (correct in PDF copy)
RT / LT definitions (missed in the print version, sorry!):

Left Twist - LT: knit second stitch on left needle through the back loop, don’t drop any stitches from left needle; knit first and second stitches on left needle together through the back loop, drop both stitches just worked off left needle

Right Twist - RT: k2tog, don’t drop stitches from left needle; knit into first stitch on left needle, drop both stitches just worked off the left needle

In the print version on pg 66 the first row of the heel flap is missing. It should read:

Row 1 (WS): Slip 1, p27 (31, 35).