Here's directions.
http://www.hgtv.com/crafting/piping-...azz/index.html
http://tlcstitches.blogspot.com/2010...-tutorial.html
Susan Cleveland wrote a book a few years ago
http://www.piecesbewithyou.com/showquilts.htm
You can google for pictures of quilts with it. I think Ricky Tims puts it on most of his.