<p>Hello. I am now self-studying for the AP Environmental Science. I am currently using "Environmental Science: Towards a Sustainable Future 10th edition" as a textbook, but decided to buy prep books too.
I am planning to buy two prep books from this list: Princeton Review, Barron's, and Smartypants.
Can you recommend be the tweo prep books from the above? Also, is Barron's AP Flashcards good?</p>
<p>I recommend PR and Smartypants. I’ve heard bad things about Barron’s, and the practice tests are very hard. Last April, while preparing for AP exams, I went to Barnes and Noble to check out the Barron’s book. While briefly going through the practice tests, I realized that I knew less than half of the questions. To make a long story short, I didn’t buy it and easily got a 5 on the AP exam. However I did buy Barron’s flashcards- they are NOT good. I hardly ever used them and they covered many topics that weren’t even tested. </p>
<p>So PR and Smarty should cover you.</p>