Celtic Knotwork Borders in Repeating Sections is Bradley's collection of original Celtic knotwork border designs presented in a way that's meant to allow artists the freedom to create knotwork borders in virtually any size, and practically any shape, that they want.
The book uses a modular system in which a border design is reduced to either two or five straight sections, plus a variety of arc sections with different numbers of repeats around a full circle.
You can purchase the book at Amazon or Barnes & Noble. More information on Celtic Knotwork Borders in Repeating Sections is available at The Celtic Art Works.
Bradley's repeating Celtic knotwork designs are also available, printed on a variety of fabrics, at Spoonflower.
There are all-over repeating patterns (as we see here), bold interlaced bands, cats, birds and even fabric designed for flags or banners.