<p>Even better is if the text book is free (legally) on the web. For example:</p>
<p>[Structure</a> and Interpretation of Computer Programs](<a href=“http://mitpress.mit.edu/sicp/full-text/book/book.html][i]Structure”>http://mitpress.mit.edu/sicp/full-text/book/book.html)
[Algorithms[/url</a>]</p>
<p>But if you are not so lucky to find a text book that is legally free, you can check various on-line retailers like [url=<a href=“http://www.amazon.com%5DAmazon.com:”>http://www.amazon.com]Amazon.com:</a> Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more](<a href=“http://www.cs.berkeley.edu/~vazirani/algorithms.html][i]Algorithms[/i][/url”>http://www.cs.berkeley.edu/~vazirani/algorithms.html) and used book stores not near university campuses for the same book at a less expensive price.</p>