How-to Sew: Pic Stitch aka Prick Stitch
This video shows how to sew a pic stitch, also known as a prick stitch. A pic stitch can be visible or invisible, depending on the use. A visible pic stitch can be used as a decorative element on a garment. An invisible pic stitch is typically used around the facing to tack the seam allowance to the facing of a garment. This type of stitch is sewn by hand.