<p>If you’re concerned about textbook prices, consider just emailing the professors in advance and asking them. I asked a professor if I could use an older version of a textbook, and she responded by suggesting the newer version as the older one didn’t match up entirely. She also said she would place more books in reserve so that more people can borrow them from the library.</p>
<p>For the record, it turned out that she was a great lecturer, so honestly, you could get away with not even reading the book and just paying attention to her lecture and slides. Asking students who have taken the class would be helpful in this regard.</p>
<p>As for maybe wanting to hold on to a book for reference, you usually can check out the library for text books. As years pass, more textbooks are in circulation, and these textbooks are also outdated. In other words, the supply is higher, the demand is less, and so the prices go down. Within a summer, sell towards the end of summer, when everyone’s trying to get a book and demand is higher.</p>
<p>For future record, buy earlier in the summer, right when you find out about your classes. Do this especially for expensive textbooks. Prices start to rise later in the summer. </p>
<p>As an example, I bought my discrete math book for $70 in mid-July (and could have gotten a better price in June, but I watched prices too long). The ISBN number is: 9780534398989</p>
<p>Amazon: [Amazon.com:</a> Mathematics: A Discrete Introduction (9780534398989): Edward A. Scheinerman: Books](<a href=“http://www.amazon.com/Mathematics-Discrete-Introduction-Edward-Scheinerman/dp/0534398987/ref=sr_1_1?s=books&ie=UTF8&qid=1313522591&sr=1-1]Amazon.com:”>http://www.amazon.com/Mathematics-Discrete-Introduction-Edward-Scheinerman/dp/0534398987/ref=sr_1_1?s=books&ie=UTF8&qid=1313522591&sr=1-1)
You can get the $80 paperback or the $125 hardcover. I have a good as new hardcover.</p>
<p>Half.com: [Half.com:</a> Mathematics: A Discrete Introduction by Edward A. Scheinerman and Scheinerman (2005, Hardcover): A Discrete Introduction(9780534398989): Edward A. Scheinerman: Books](<a href=“Electronics, Cars, Fashion, Collectibles & More | eBay”>Electronics, Cars, Fashion, Collectibles & More | eBay)
$120 for a hardcover</p>
<p>But be aware that schedule changes can and do happen. I had a class that was changed from a T/Th schedule to a M/W schedule, and had to drop it. Fortunately, I hadn’t bought the book for that class yet. If this happens, you can probably resell the book online for at the price you paid or even more than the price you paid, so no big worries there.</p>
<p>If you’re late in buying, use books on reserve in the library while waiting on online books to ship. B&N is overpriced.</p>