<p>Hi,</p>
<p>I'm currently in my junior year completing the IB diploma, but I think it would be wise to broaden my knowledge and self-study several AP subjects. I'm considering self-studying 3-4 AP's, including:</p>
<ul>
<li>AP Biology</li>
<li>AP Economics (Macro)</li>
</ul>
<p>(I will complete AP Environmental Studies in 2008/senior year)</p>
<p>But I was wondering what other subjects were easy to self-study for, and what text books you would recommend. Would you suggest the Princeton Review guide for AP Biology?</p>
<p>Thank you for your help.</p>
<p>:)</p>