Back Stitch. A neat stitch used to ornament linen or fine canvas. Bring the needle to the surface of the material, insert it two threads behind the working thread, take up four threads forward, bringing the needle up two threads in front of the working thread. Continue taking two threads behind and two before the working thread, putting the needle each time into the same hole as the last stitch. The beauty of the stitch depends upon its perfect regularity. It is best to draw a thread for a guide.