<p>A lot of teachers at my school recommend buying the Barron review for AP psych. I've always been an avid Princeton user. Is there really a difference between the two prep books?</p>
<p>I haven't tried the Princeton Review book for psych, but I am using the Barron's book, and I can tell you that it's very good. There really aren't many people that can disagree with that...</p>