<p>Recommended books
- Official ACT prep guide (from the makers of the ACT)
- Princeton review "cracking the ACT"</p>
<p>I recommend these books because they're as accurate and similar as you can get to the ACT itself. I also find the tips given by the books pretty good, helped me a lot (especially on the reading test).</p>
<p>The barron's act books are ridiculously difficult, honestly I think you'll get discouraged from just looking at them. I scored 69/75 for my english test on the princeton review, and scored 50/75 on the barrons. The reading test is especially difficult; unless you're a fan of literature and have godlike discerning skills, I do not recommend the barron. </p>
<p>Bar the english and reading test though, the math and science test in the barrons are somewhat similar.</p>
<p>Hope this helps!</p>