Knotted

So I FINALLY just wrapped my head around Celtic knot work for the cover and page elements of 'More Everyday Science Mysteries.' I was sitting there yesterday, working away on the running chapter head (which was the last bit of art that I had to do for the book template...) and it just all suddenly clicked! It was like the sky opened up and all the math and symmetries of weaving highly irregular and meandering lines into tightly organized shapes came descending on golden treads. I just wish that it had happened sooner in the process. I hope that I get to use this stuff again!