A refreshingly opinionated book. There is only a pamphlet's worth of text in the book, the rest is made up of patterns that can be assembled to form Celtic knotwork constructions or graph paper that can be used to layout Celtic knotwork patterns. The approach to drawing is mathematical, but is not mathematically expressed. When I have leisure I'll work out the details. ( )

I'm finding this one a bit hard to follow...will keep trying at it though. ( )