The backstitch can be used to produce a relatively strong seam, resembling machine stitching in appearance. Take a stitch back about 2 mm (1/16"-1/8" long)., depending on the fabric, and then pull the needle through the fabric For a stronger seam, take a small backstitch from time to time.
The whipstitch is used to hold two folded edges together in a tight narrow seam. Place the two edges together. Take the stitches from back to front, close to the fold and close together.
The hemming stitch is primarily used for hems. Take a stitch in the hem edge. Take a small stitch in the garment just below the first stitch, at the same time putting the needle in the hem edge at least 6 mm (¼") ahead; pull the needle through the fabric. Continue.
The inside blind-stitch is suitable for any fabric but is particularly good for hemming fabrics where an inconspicuous hem is difficult to achieve, such as knits and wool flannel. Fold the hem edge back about 6 mm (¼"). Take a small stitch in the garment, about 6 mm (¼"); take the the next stitch 6 mm (¼") ahead in the hem. Continue, alternating stitches between the hem and garment.