Without a doubt, the absolute BEST tutorial for doing LeMoyne star is Edyta Sitar's. She demonstrates it in many of her books (with loads of pictures) as well as having a youtube video. I think Fat Quarter Shop published it. Look for Edyta Sitar 8 point star tutorial. I believe it is in two parts. I consider myself a very experienced and advanced quilter. Since switching to her method my enjoyment and accuracy of piecing these has increased tremendously. I didn't use the video, I used the instructions found in her book Scrappy Fireworks Quilts.