There are several popular AP Chemistry review books that students use to prepare for the exam. Some of the top choices include:
1. "Cracking the AP Chemistry Exam" by Princeton Review
2. "5 Steps to a 5: AP Chemistry" by John Moore
3. "Barron's AP Chemistry" by Neil D. Jespersen and Pamela K. Kerrigan
4. "AP Chemistry Crash Course" by Adrian Dingle
5. "CliffsNotes AP Chemistry" by Bobrow Test Preparation Services
These books typically include practice questions, review of key concepts, and tips for test-taking strategies. It's important to choose a book that aligns with your learning style and study preferences.