Dear Dr. Chung,

I cannot thank you enough for everything you and your books have done for me. I own the SAT and SAT II level 2 math books as well as the AP Calculus book, and they have been indispensable throughout the last few years. Thanks to your books, I received high enough math scores on these tests to be accepted to Harvard ( I’ll be starting there this fall). Most importantly, you’ve allowed someone who isn’t naturally a math whiz to feel comfortable in the math skills.

Thanks again for everything!                                                               

Sincerely,                                                                 

Sunny