Is it worth it to buy the Barron's AP Psych review book?

I took the Physics 12 course at my school and loved it, so my teacher told me I could take the AP exam even though I wasn’t in the AP class. My question is, is it worth it for me to get the Barron’s book since I pretty much learned most things already? Not everything though, since there are three chapters I still have to read. I have the Myers book and my teacher’s notes, but everyone online is saying the Barron’s review book is a must have. What do you think? Should I buy it for those three chapters (and to review the rest, of course) or just use Myers & my teacher’s notes?</p>

I know the AP exam is almost here but since I’ve learned (almost) everything already, I just need to review and solidify the knowledge. Oh, and I’d get it in eBook form which is $10, which is not too shabby.</p>

Thanks!</p>

<p>Yeah, they are pretty dirt cheap anyways. I mean, you can get a past version used for $5-$15 plus shipping depending on if it is used or new. I mean, it would be a different story if its somewhere like $30 or more like a real text book…but I mean I think the extra $15 won’t hurt.</p>

<p>Plus it is good to review what you did from earlier chapters, a quick brush up the week or two before the exam at least.</p>