Pattern by Mimi Shimp.
This was done for a friend of mine for a wedding gift. The colors matched her wedding colors. The finished quilt was approximately 6 foot by 6 foot (36 blocks total).
...and it's in the comments section...but for future reference...this is the link to what I used to make it: tlc.howstuffworks.com/.../true-lovers-knot-quilt-block.htm
As there is no information in the link for how much fabric to buy, I did all the math myself. For the quilt shown, I bought about 4 yds. of each color (to include the borders/binding around). I did each strip 1 1/2 inches (so 1 inch finished strips) with the middle square being 2 1/2 inches square (so a 2 inch square when finished). The border around the outside was 3 inches wide finished...so 3 1/2 inches when cut (for 1/4 inch seam allowances on each side). I don't want to write out each measurement for each individual strip (as there are 21 total)...but if you draw it out on graph paper (like I did), I'm sure you'll be fine. Don't forget to add on seam allowances to each side of the strips before cutting and happy quilting. ;)