I’ve been teaching chain mail classes for 4 years now, both at the Arisia science fiction con and at Voyagers home school co-op. I had developed images for my instruction sheets, and realized I had the material for an e-book on making chain mail. I designed the cover, too. Ebook covers are tricky, they have to look good at both very small and medium size, as you get to upload only one image file that is used everywhere. The e-book is available at Smashwords for every reader except the Kindle, and at Amazon for the Kindle.