Diagonal Buttonhole Stitch (Diagram 1):
Bring the needle up at A, create a curve (as shown above). Keeping your thumb on the curved portion of the yarn, move down and to the right over three canvas intersections, bring the needle down at B. Bring the needle up at C, move OVER the previous stitch to create another curve. Again, keep your thumb on the curved portion of the new stitche, move down and to the right over three canvas intersections and bring the needle down at D. Continue in this manner until you reach the end of the row. As you work this stitch, you will see that the curved area of the stitch is held in place by the next stitch. A small tent stitch may be used to hold the last stitch in place.