I heard about this type of knot for tying quilts from a friend, where there are no tassels coming out of the knots because you stitch between the layers of fabric. I found the instructions but they were very confusing. Embarrassingly, I had to have my Scoutmaster husband interpret them for me! I loved how they turned out though, so I decided to post pictorial instructions so others can enjoy the decatur knot also!

Notes to start:
* I used a long thick needle - I think it was for making dolls. You need to use a very long needle since you will be bringing the yarn through the layers of fabric and the needle needs to be as long as the space between your knots, or as close to that length as possible.
* I actually used very thick string instead of yarn, and it worked great.
* I missed pictures of a couple of steps - the starting and stopping.
* Let me know if anything is unclear. I can't find my original instructions, so I'm just explaining from how I remember I did it. I could probably be more clear in some places and will gladly edit the instructions if it will help comprehension.
* Good luck!!