What is the best/simple AP Statistics book to use? For Biology? For Pre-Calculus? HELP!

I’m taking AP Statistics, Pre-Calculus, and AP Biology next year, and I need a way to study them beforehand otherwise I’ll be REALLY behind…
What is the easiest-to-understand book for Biology? I heard it’s a LOT of memorizing… Which books have all the only-necessary information for the AP test / SAT II?
Same for Statistics…
And as for Pre-Calculus, which books explain the concepts in the most simple way?
I’m not looking for an overly simple book; just a book that contains - only necessary data, in a way.
Thank you, PLEASE HELP ME!!!

Definitely Barron’s. For the best video lessons I recommend jlinchstats website. While all study guides are good all the ap free response questions are released as well as some multiple choice.