<p>Barron's for Math IIC is quite difficult, certainly beyond the level of the test. It'll prevent you from getting complacent, but a low score could really kick your self-esteem (not a good thing). If you're really committed to getting ~800, though, try it -- at the very least, if you can do well with it, you'll definitely make an easy full score on the real test.</p>
<p>Avoid Princeton Review for Chemistry, it's error-fraught and not nearly explanatory enough. (I realised that to my great chagrin. Still did fairly well -- 790 -- but could have had 800 with a better prep book and more work.)</p>
<p>for math IIc i would reccomend going with PR and just looking over barron's content if you get a chance, maybe to expose yourself to a few different things. i personally do not suggest the barrons practice tests, so if u have a lot of money to spend on books, lol, you could also get the official sat II math practice test book and see how the real level of difficulty is. if you want to go with one book go with PR for content and tests.</p>