I have a video I bought a couple yers back, called Practical Fur Handling. Covers the skinning, scraping, stretching, drying (and I believe, tanning) of some critters. I think it's got coyote, bobcat, fox, skunk, beaver, otter muskrat, mink and raccoon. The back of the case says
www.huntersvideos.com, so that might be worth a look if you're not opposed to videos on the subject. It IS a very well done video, however there is not much to learn from it if you're already been doing the stuff. There isn't much in the way of additional useful tips and tricks (at least not for me there wasn't), but for a beginner that doesn't quite know where to start, it would be a little goldmine.