Hi, Steve.
Thank you very much for the additional information regarding the books and courses. I had heard of these books but hadn't seen a copy for myself. In speaking with the gentleman and after already having purchased a few diesel operating manuals from him, I mentioned I like detailed, "hands on" information and he recommended these books to me. My only regret was not purchasing all the volumes he had but I had already spent a bunch and was running a bit low on available funds so I chose the six titles which looked most interesting to me.
Thanks again,
Bob