IPO Or AKC tracking? If you don't want to compete in bitesports then I suggest Enthusiastic Tracking by Sil Sanders and also look up your local AKC tracking club because most offer inexpensive beginner's clinics in the spring. That's how I got started with my dog.
The clinic was a day long and consisted of basic info about how scent behaves, how dogs track and learn to track, how to measure yards with your stride (among other things it was a couple years ago now and I don't remember it all), and club members laid baby tracks for all of our green dogs to try it a few times.
We found our favorite hobby and I expect I will track with him as long as we both are able.
