When I hand stitch the binding to the back of my quilt, I use the invisible ladder stitch to tack the back binding edge closed. I pass the needle at the corner tip through to the front and invisible ladder stitch it closed, I then pass the needle through the quilt to the back coming out right at the inside corner of the binding. I put a knot in my thread ( to prevent any of the corner stitching from moving) and then continue on hand sewing the binding on the next side.