In the video tutorial below, I explain how to read 3-number cable abbreviations (like 1/2/1 RPC for example), and explain the meaning of all of the numbers and letters you will regularly see in cable knitting patterns.

For clarity, I use ribbons to show how this sort of cable is formed, and I'll also talk about what they are used for.

I hope that this video, plus my previous video about 2-number cables, both help you understand how cables are created.