<p>I did my research and found that most highly preferred Cliffnotes. I bought it (for $30!?!) and as I looked through it, I wondered if it was just a bit too general, which I'm sure it has to be since there are thousands of facts to know anyways, but when I asked my Biology teacher (who is very good at his job and has good experience), he thought it was general too and said that he preferred Princeton Review. </p>
<p>Which one would you guys recommend? I don't have Princeton Review at one of my stores to see what it's like but I can find it at another maybe so I need to know fast because I plan on reading the book during some long road trips coming up and need to return this Cliffnotes tomorrow if I find that there is a better one.</p>