Comment on Yin-Yang Grapes by sidneyeileen
Very carefully. 
I have a tutorial in my gallery for creating freeform knots, but I haven't yet written anything about creating spirals. Have you checked out *TheKnotters? The resources journal page [link] includes links to some online tutorials and web sites that have how-to guides. There are a lot of different methods for creating knotwork, so it's worth looking at a lot of different guides until you find a method that works for you.
I have a tutorial in my gallery for creating freeform knots, but I haven't yet written anything about creating spirals. Have you checked out *TheKnotters? The resources journal page [link] includes links to some online tutorials and web sites that have how-to guides. There are a lot of different methods for creating knotwork, so it's worth looking at a lot of different guides until you find a method that works for you.