<p>What is by far the best prep book available for "learning" not practice tests for the ACT. I have a couple at home and havent used them at all. </p>
<p>Out of these 4, tell me which is good or if u have any other suggestions:</p>
<p>The Princeton Review ACT book is the best one for learning about the test. It has great info and flows quickly. I love that book. The tests are great too.</p>