<p>I am currently a Sophomore and enrolled in AP US History. As a Freshman I self studied for the AP World History exam and received a 4. Now that I am actually in the related class and have carried an A+ through the first semester I hope to receive a 5. I also wish to take the SAT Subject Test in US History.</p>
<p>Should I purchase two separate review books for the two separate tests, or will they be so similar that it would be pointless? If I only purchase one, should it be for the AP or SAT? I currently plan on purchasing the Crash Course AP review book.</p>
<p>Thank you for your time.</p>