[AbbyK9]

I have a couple of his DVDs, including the one on Focused Heeling and Playing Tug with your Dog. I think they're definitely worth the money. Each of them is several hours long and essentially a filmed version of a Michael Ellis seminar - so you get to see him explain the techniques, answer questions, and watch people who have never done it try it with his dogs, with Michael correcting what they are doing wrong. I found the latter very helpful as it keeps me from making the same mistakes.

The DVDs are definitely much less expensive than a Michael Ellis seminar, too.