Pumora's stich-lexicon: threaded back stitch, umschlungener Rueckstich/Rückstich (DE);
Great x-stitch ornament tutorial
The back stitch is a basic embroidery stitch used to produce a thin line of stitching, or to outline shapes that will be filled with satin stitch.: How to Work the Back StitchTips and Tricks for Back Stitch
Pumora's stich-lexicon: double threaded back stitch, doppelt umschlungener Rueckstich/Rückstich (DE);
My favorite tutorial for backstitch. This video for backstitch helped me more than any other video.
How to Frame Cross Stitch in a Hoop Video Tutorial
Solo Patrones Punto Cruz | Aprender manualidades es facilisimo.com
Button Back Striped Tops- looks cute, love fit; Love button detail and thick stripes