What are the best guides for the following AP classes (I plan on buying them soon and studying over the summer to prepare for the classes):
AP Calculus
AP Chemistry
AP Literature and Composition
I have heard Barron’s and The Princeton Review are good for all of these but any suggestions are good. If at all possible, if anyone had to choose between Barron’s and The Princeton Review for each one of these, which one would they choose. Thanks.