<p>Wikipedia!!.. I am preparing with it.. I never took US history.. I'm from Peru.. I am taking it this saturday and I bought tests from sparknotes.com ( I got 570 on 2 of them) and I got 600 on the offcial practice test...</p>
<p>I got an 800 on the US history. Basically, studying for the AP exam helps alot. After that, read through Princeton Review and Kaplan review books a few times.</p>
<p>if you've already taken ap us history, just read REA in the last couple days before the exam. its very organized, and has most nearly everything. 5 days prep and a 770. took it 5 months after the ap exam.</p>