I’m having so much fun with Nicola Susen’s Square Socks from New Directions in Sock Knitting that I find myself knitting on it when I ought to be doing other things. I love how this sock is constructed so differently from the standard toe-up or top-down sock.
There’s no real heel to speak of. Once the foot is the desired length, the the leg begins in bias k2, p2 ribbing with mirrored increases worked at the center front of the leg and mirror decreases worked at the center back. This forms a tidy knit columns at the center front and back of the leg, with k2, p2 ribs angled between them. When the leg is the desired length, the top is finished back and forth in rows with a stitch bound off at the center front of each row while decreases are continued at the back of the leg.
The result looks oddly angled, but wet blocking helps it to assume a more sock-like shape.