<p>So I have 4 ACT books that I got from a used book store (Good news is that they were all barely used).</p>
<p>I have the red Real Prep guide, Princeton, Barron, and Kaplan. Just flipping through Barron's, it doesn't seem that great. Kaplan may or may notbe good. The red one and Princeton's seem to be the best ones. </p>
<p>So my question is should i use Barron, Kaplans, both, or scrap both?</p>