Backstitch is a versatile stitch that can be used purely as decorative embroidery or functionally in hand sewing. Backstitch creates a single, unbroken line of stitches that can be straight or curved. The length of each individual stitch can be very short or very long, but the stitches should all be the same length.
Thread your needle and tie a knot at the tail of your thread.
Insert your needle from the back of the fabric to the front so that the knot is at the back of your fabric.