How to back stitch
Secure the thread on the wrong side of the fabric and bring the needle through to the surface to start the first stitch. Move a stitch length backwards along the sewing line, take the needle back through the fabric and then bring it to the surface at the end position of this stitch.
Moving back along the stitching line, take the needle down through the same hole as the previous thread. Bring it to the surface for the end position of the stitch. Repeat along the sewing line to create even stitches.