If you need to know it, it's in this book! Cracking the AP English Language & Composition Exam, 2012 Edition has been optimized for e-reader viewing and includes:
A comprehensive "Hit Parade" of important vocabulary words
Detailed coverage of all essays types--rhetorical analysis, argumentative, and synthesis
Useful techiniques for cracking the multiple-choice section
2 full-length practice tests with detailed explanations
Updated strategies that reflect the AP test scoring change