The "twinded binding" was devised by Roberta Lavadour and she explains it in detail in The Bonefolder, Vol 4 No 2. This image to the right, shows a stack of Roberta's twined spines. Using multiple thread colours, the twining can make whatever grid pattern you have the patience to create.
Twining is a basket weaving technique and as Roberta states in her article, "the basic twining technique itself was and is used by many cultures in North and Central America, the Middle East and New Zealand in the fabrication of everything from tapestries to sandals." She incorporated the technique into her work and created this binding for the 2007 Guild of Book Workers Standards of Excellance Conference. She has done some incredibly intricate and gorgeous books using this technique.
The following is my first attempt at the twined binding, resulting in quite a plain checkerboard pattern, which seemed quite complicated for my first go! I used limp leather for the cover material rather than making a hardcover as she suggests in her article. But I do really like how the back cover is woven, which allowed me to continue the twining on the fore edge wrap-around, and two of the long straps are long enough to be used as a closure, extending around to the buttons on the front cover. This technique definitely requires some practice!
This type of binding was included in the 2008 Bind-o-rama, so you can see some better examples and more of Roberta's books in The Bonefolder, Vol 4 No 2.