APUSH SHOWDOWN - Which prep book did the best?

<p>How long/thick is the AMSCO book? It’s very elusive; I’m having trouble locating it. I’ve been hearing so much about the famous “AMSCO + Crash Course” duo, but I want to make sure AMSCO is foremost a REVIEW book, not another, extremely dense textbook. </p>

<p>Advice appreciated.</p>