<p>Hello, I am a sophomore. I am taking AP Biology in school and planned to self study the AP Environmental Science by myself.<br>
For AP Biology, I use Cliffs AP, Barron's, 5 Steps to a 5, and College Board AP Bio Lab Manual.<br>
For AP Environmental Science, I recently bought the Environmental Science: Sustaniable Future 8th Edition, and plan to buy some prep books.<br>
Can you recommend any AP Environmental Science prep books? And are Peterson's AP series and Pearson's AP Biology prep books are famous?</p>