Are old prep books from 2011 okay to use?

Test Preparation
1

<p>I have 2 SAT prep books from 2011 (One blue book and one Princeton Review), and 1 ACT prep book from 2011 (Princeton Review). They are from my sister. Are these okay to use?</p>

2

<p>Yes! I used the review books from 2007 last year and got a 2150 on the SAT</p>

3

<p>Ok, thanks.</p>

4

<p>Definitely! The newer versions are usually just revised versions… But the old ones are completely usable!</p>