Joining borders using herring bone stitch - Traditional square shawl

Hi there, I’m new to this forum. I have been knitting for a wee while and can usually work things out either through other forums or YouTube. However I’m stumped. Can anyone tell me how to join borders on a shawl using Herringbone stitch or point me in the direction of a good tutorial. Thank you.

Hi and welcome!
Herringbone is a beautiful but tricky stitch as you’ve probably already discovered. You want to join the edges of pieces worked in herringbone or graft live sts to some held sts? Maybe a photo would help us. You can upload a photo using the up arrow in the reply box.