This book is titled Mathematics for Plumbers and Pipefitters by Lee Smith and is nearly identical to the more currently released editions such as ISBN 1111642605 or ISBN 9781111642600 or the 8th edition or any other more recent edition. This is the 5th edition and it contains nearly the exact same content as the newest edition, and can easily be used for your class as you can see from the thousands of feedbacks left on our account. We specialize in tracking prior editions that can be used in place of the most current and much more expensive editions and our large base of repeat customers (see our 30,000+ Positive Ebay Customer Reviews) is a good indication that it works very well. Choose priority shipping upon checkout for fastest shipping speeds. We ship fast, we are based in the US and we ship to nearly ALL INTERNATIONAL locations too! And if you are shopping for more than one textbook, be sure to select the blue link below or the Search Store box above to search for more of your books within our massive inventory (we carry most textbooks) and save even more. We simply strive to provide students and professionals with the best prices on books and textbooks available online. By shopping with us you will find that it is possible to get your textbooks at affordable prices. We are a proven seller with a long track record of positive customer experiences and we take pride in fast delivery of affordable books to students across the US and to nearly all International countries too.