Rope stitch is probably the most rich looking embroidery stitch of this family. It follows a series of closed up twisted chain stitches to form an embossed rope look. You need to know the twisted chain stitch to be able to do the rope stitch.
Instagram photo by @embroidery_prin via ink361.com
Stitch Fun: Daisy Stitch in Two Colors, Take Two
Вышивка по трикотажу
Cross stitch - kanaviçe
This is a tutorial on how to do a French Knot, I like this because it shows a detailed tutorial with pictures that would help people learn.