<p>I need to buy my textbooks for school, but they're all so expensive and my family really doesn't have the money right now. So I looked them up on Amazon using the ISBN and they're a lot cheaper. The thing is that the publishing year is different by only a year. Everything else like the edition and publisher is the same, though. </p>
<p>Will the publishing year really make a big difference.</p>
<p>isbn numbers are (with very few random exceptions) unique to a book. so if the title matches and the isbn matches, feel free to purchase the book online. it will be the same thing. if its a book that comes with an online access code or cd, however, you might want to find out if either is necesssary. many used books will be missing one or both.</p>
<p>you could also try bigword.com. it’s a great site; just search for your textbook and it’ll list for you many different websites to purchase from, with some great cheap offers.</p>