Hand sewing is the best way to mend and do repairs. Even if you sew primarily on a machine, being able to sew well by hand will allow you to finish every project you make in the cleanest, most professional-looking way.
How to ladder stitch (or invisible stitch). This hand sewing technique is essential to closing up the openings in sewn projects without any visible threads. Photo and video tutorial on www.cucicucicoo.com