Then you simply place what armor you want onto the mannequin. To get your own mannequins, buy the house in Solitude (25,000 gold) and furnish it enough until your mannequins appear. This is a little glitch in the game which allows you to duplicated your pieces of armor with the use of mannequins. Buying these spell books was worth the gold for sure. The result was Sneak, One-Handed, Restoration, and Conjuration, all leveled just as fast as when I did it without on my warrior-type.
I used Bound Sword while Sneaking and using Healing Hands to heal the Jarl after each hit. Helpful Suggestion: Using Healing Hands as well can speed up reset and level Restoration at the same time.