My assessment is premised on the nature of the courses: short, convenient, "must know's" taking priority, and compatibility with occupational health and safety legislation. I took the idea as seeking to know the basics well, "me" being someone with limited knowledge of the subjects. In these respects I was not disappointed and much appreciate the orientation and the basic information provided. Once I was finished each course, I had a pretty good idea of where to start a search for relevant references, particularly occupational health and safety legislation. I therefore feel I received very good value for my time, effort and money. Robert D. Bradford