Bring the needle through at the upper left of the area to be stitched. Insert the needle at a point below and to the right of where you started to create a diagonal stitch. Bring the needle though at a point to the right and horizontally level with the top of the first stitch. Reinsert the needle in the same hole to create a V. To ensure uniformity, Arrowhead Stitch is best worked on evenweave fabric.
A-Z of Embroidery Stitches, p 9 Mary Thomas's Dictionary of Embroidery Stitches, p 2 The Stitches of Creative Embroidery, p 85