Sure Mills puts up projector slides directly from the BHMT book he wrote, but some professors from other universities have done the same. His BHMT book is excellent and well written, I liked his style of writing. The concepts were in good order, and the text is not as lengthy as Incroprera and Dewitt. The problem sets are challenging. If you don't read the book regularly or in advance, you might not find the lectures useful. Too bad the lectures are usually at 8AM. Go to office hours; Mills will help you and have good conversations with you. You can ask him homework questions in office hours and he will help you think of the correct approach, but stop and not give you the solution. He especially likes it when you talk to him about anything else. If you go often enough, he'll remember your name. Once in OH, he told me there a problem in the book was a good exam question, and then it showed up on the final exam! Mills may seem intimidating, but he is actually friendly once you get to know him. Take his courses if you can! He also was the coauthor of the MAE 157 lab manual, which was also well written.