Thank you. Since this isn't a college course, I am not restricted by a textbook. When I taught at Stratford, they, like other universities, didn't give the professors a lot of leeway and our textbooks were selected before some of us even taught the course. I am looking to have a more working knowledge course and I think a lot of this information reflects I am on the correct path for the need for this. Of note, I attended undergrad at UM at College Park and was amazed by how many textbooks we had with little working knowledge for the courses.