Page 1 - In the right column under Back, the 2 set-up rows have been revised so that the ribbing aligns with Chart C:

Row 1 (RS): K4 (3, 2, 2, 2, 2, 1), [p2, k2] 4 (5, 6, 7, 8, 9, 10) times, p3, k4, p3, k3, p3, [k2, p2] 9 times, k2, p3, k3, p3, k4, p3, [k2, p2] 4 (5, 6, 7, 8, 9, 10) times, k4 (3, 2, 2, 2, 2, 1).

Row 2 (WS): P4 (3, 2, 2, 2, 2, 1), [k2, p2] 4 (5, 6, 7, 8, 9, 10) times, k3, p4, k3, p3, k3, [p2, k2] 9 times, p2, k3, p3, k3, p4, k3, [p2, k2] 4 (5, 6, 7, 8, 9, 10) times, p4 (3, 2, 2, 2, 2, 1).

Page 4 - On Chart C, row 8, stitches 7 and 20 should be purl, not knit.