Clicker training is a great way to train your dog. I would love to do it with Thor, but he's terrified of the clicker.
A good general book on the principles behind training is "Don't Shoot The Dog", by Karen Pryor. She basically founded the movement, so if you google
Karen Pryor Beginning Clicker Training
etc, I'm sure you will get tons of hits. She has a website, classes, etc.
Let us know how it goes.