Types of Direct Hits Books?

<p>So I've been reading that Direct Hits has tremendously helped students on this site with the critical reading section. I was wondering which Direct Hits books are the most beneficial? I've seen core vocab, toughest vocab, volume 1, etc.</p>

<p>Get both volume 1 (core) and volume 2 (toughest). If you learn the words in those you’ll do very well on sentence completion.</p>

<p>@PlayerZero Okay thanks, have you used these books? If so, did you have any major improvements on your sat cr score?</p>