<p>So to save money I asked my prof what book we would need via e-mail he responded with:</p>
<p>Human Biology: Concepts and Current Issues Fourth Edition
Michael D. Johnson
2008
ISBN number 0-8053-9427-3</p>
<p>Now, this book either does not exist or is not available for purchase, because it does not come up when i type the isbn number into a search engine. I did find the Fourth Edition online, but it has a 2007 co. does that matter?</p>
<p>no, as long as the edition is the same. the difference in years might yield a different color cover, but that's about it</p>
<p>Have you ever thought about the possibility of a typo from the prof regarding the year?</p>
<p>Here's a link to a second edition <a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=2228&item=320139352769%5B/url%5D">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=2228&item=320139352769</a></p>
<p>Ask the professor if you specifically need a certain edition to do problem sets. If not your cheapest alternative would be to buy this book. It would be a little confusing but I've done this before and it worked out. If on the first day of class you find out the books are COMPLETELY then you've wasted 12 dollars. I think it's well worth the risk.</p>
<p>Email your professor and ask him if you are doing problems from the book. if that's the case then you have no choice but to buy the correct edition. </p>
<p>your Edition is out there, you just need to find it.</p>
<p>Can editions of books have dates that are in the future? I was under the impression that, unlike cars, the date of an edition of a book was always the year it was actually published in. It might be possible that the professor has an early copy of a book to be published next year and that he just grabbed the wrong book when he e-mailed you.</p>