<p>I used kaplan, barrons, crash course, the essential content, and sparknotes and i found that barons & kaplan were the worst and crash course was in the middle but SP+Essential content was the best you could do. I could make a thorough review on all if you guys want. I got a 790 on the test that day but the 800 would have been mine if i wasn’t cramming like hell for bio E.</p>