<p>A single book for SAT US History won’t help you. US History is unpredictable and no book can cover every single aspect. The subject test likes to test details of US History and doesn’t expect you to know everything and thus you can get 10 questions wrong and still get an 800. If you had a good APUSH teacher and you learned a lot you will be fine. Just take a few practice tests from Sparknotes online.</p>