Keith Smith calls this a houndstooth stitch pattern. This was next on my list of 3-section sewings that I wanted to try. I did the grey book first and it seemed like the pattern wasn't spaced very well, so I did the pink one trying to improve the spacing of the stitches. The pink book is better but could still be improved to make the pattern pop out more.
These are both available in my etsy shop; grey book and pink book.