Campbell biology.

<p>What is the difference between the 7e and the 8e?
Its REALLY getting to me.</p>

<p>Just get whatever edition is cheaper. For the most part, books don't change much from edition to edition. Usually, in the preface to the new editions, it will list the changes. If the listed changes make that big of a deal to you, then get the newest but as long as you're within 2 editions, you should be fine.</p>

<p>Probably not that much really. My teacher uses 4e in class, the school issues 6e to the students, a classmate has 7e. They have basically the same information. Although the later editions are more pleasant looking than the older ones.</p>

<p>I have the 7th Edition, and yea, just different versions.</p>

<p>I've looked through the 6 and 8 and its basically the same information. I wouldn't worry about. The Campbell books are the best though.</p>