All instructions were very clear. Our "crazed" golden retriever became a wonderfully obedient pet within 10 days. We were amazed at how quickly our dogs responded. We enjoyed understanding the psychology behind the methods. Our dogs already had basic obedience training but serious problems still developed. Bark Busters humanely solved behavioral issues. They are more obedient and the golden is happier too. This program worked miracles on our golden who had turned very destructive and would try to escape at all cost. Amazing !!!