<p>Recently there are many threads talking about AP preparing books. I also have some similar questions.</p>
<p>I plan to take Calculus BC, Physics C(both) and Chemistry tests. Which books are good to prepare each test? Peterson's, Barron's or PR?</p>
<p>I have Peterson's for both Calculus and Chemistry, PR for Physics. Should I buy some more?</p>
<p>Thank you for your advice.</p>