<p>Hey there! :) I've already got some SAT Bio books (PR, Barron's, Kaplan, and SAT II Success Biology E/M). However, I read that these are good only for review if you know the material beforehand, so I'm looking for a good detailed AP book to study everything in-depth before/after going through the SAT books (I'm an international student btw with no biology prep whatsoever). Which one do you recommend - Barron's, PR etc.? I'm aiming for at least 700+ and I'm planning to take the E version in November. Also, how much time do you think is enough to prepare well?</p>