Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Should be required viewing for all dog owners!

I've been training dogs, and humans for over 17 yrs. This is not dog training, it's dog psychology. Before you train, you have to understand the species, and be a good leader. Cesar teaches leadership. I love this DVD!This DVD says all the right things, in a way that every owner can understand, and shows how a good leader shows authority in an assertive, but nonviolent way. I'm going to make this required viewing for all my clients!Cesar, thank you for taking the time to share such magnificent information with the World.