I often take free online courses from colleges and universities around the world. Several weeks ago I was notified of a course called "dog emotion and cognition" being offered by Duke University in North Carolina, USA. For those who may not know...Duke is an American ivy league university. I am almost halfway through the course and I'm learning a lot and having a blast trying different things with my dogs. I get the courses through coursera.org. A certificate is offered but if you apply for financial aid like I did it will be sent to you free. A few other thing were suggested for you to buy. I did not buy anything and I am doing very well and enjoying myself. Thought I would let others know that may have an interest in maybe finding out how your dog's mind works.