And there is a new, revised edition of Electricity for Heating, Refrigeration and Air Condition by Russell E. Smith. Now I never got my student loan yet and a classmate was able to lend me his book, edition 7, because he got the newest one, edition 8.

I've looked at both books with some people in class (and they all got edition 8) and chapter one is exactly the same, questions and all. I never got to compare the second chapter so if anybody is able to inform me on the biggest revision they made, I would appreciate it, because it doesn't look like there is anything major.

I'd like to save myself some money and not have to get an expensive hardcover book that I may not even end up reading that much when I could pay a fella for the one he doesn't need anymore.