<p>For AP Biology, I suggest CliffsNotes + Barrons. I got a five on the exam two years ago because I read those books. My biology teacher only covered 60% of the course content and we did only 4 out of 12 required labs. CliffsNotes and Barrons would definitely help you.</p>
<p>For AP Physics B, I suggest Princeton + AP Advantage. Even though I only seriously prepared for the Newtonian mechanics part, I passed. If I did all of the problems from just one of the two books, I would get a better score than a 3.</p>
<p>Sorry that I can’t give you any suggestion for AP Chem.</p>
<p>Bio: CliffsAP all the way! Has ~300 pages of content, plus 2 practice tests, with answers and explanations. Content is amazing and easy to understand. Practice questions at the end of every chapter are great. My only complaint is the diagrams, which are very obscure. I referred to my textbook (5th edition Campbell) for these. Labs are passable, but for better understanding, visit pearson lab bench. My score: five (selfed)</p>