Learn how to do Twin needle Stitching or double needle stitch ; uses of twin needle sewing especially for making hems and decorative stitches| SewGuide
Pick Stitch is a widely spaced small back stitch. When done repeatedly, it looks like a stitching line of small running stitches with a wider gap in between| SewGuide
You are right, I am speaking from my experience. If you want to know more about some of the most basic sewing machine stitches your sewing machine (probably)| SewGuide