Deb Jones, the teacher of that course, also has a book: Cooperative Care: Seven Steps to Stress-Free Husbandry and a facebook group: Cooperative Care with Deb Jones. Cooperative care is definitely a great thing to start early, and a super positive and fun thing to work with. It's what zoos use to teach their animals how to do things like open their mouths so vets can check their teeth, or stand still for an injection, or a blood draw. I've seen at least one gorilla trained this way come up to the cage bars and stand patiently while they were getting an ultrasound too! Very powerful, very cool stuff.