The Slip Stitch is used often to join two folds of fabric for a clean edge, most frequently to meet linings with outer “Fashion” fabrics. One of the most frequent stitches I’ve used-especially when I was working on hats!
The Herringbone Stitch in embroidery is used for various borders and zig zag type patterns. It is very similar to Catch Stitch in regular hand sewing, yet this is to be more often a bit larger, and more visible.
Unlike the Catch Stitch, the Herringbone Stitch is done on only one layer of fabric. The Catch Stitch is used to hold more than one layer together to create a hem.
The Double Cross Stitch is similar to the regular Cross Stitch, being like an “X”, but the Double Cross Stitch looks more like a snowflake, or could even be used to looks like a star in an embroidery pattern.
Unlike the regular Cross Stitch, The Double Cross Stitch may not be easy to do on Aida fabric. Since the holes in the Aida fabric are only set up in rows squares, it would be difficult to poke through the stiff fibers in between the holes.