There are a few videos on the market that do show you how, but the best is get a person to show you first hand. Some taxidermists will show you and is probably the best way to learn.
If you want one time when im home pop out for a beer and I can kinda show you the basics on a couple salted bear hides I have. Then in the fall if we get a fresh cape we can go over it in detain how to turn the ears, nose and eyes and split the lips if you would like.
SG