저자 : 유하림(Harim Yoo)
The author, Harim Yoo, graduated from Northwestern University(B.A. in Mathematics) in 2012. Harim also served in the ROK/U.S Army as a KATUSA sergeant in the 2nd infantry division from 2012-2014.
Since his ETS from duty, he found his passion for teaching and educating bright students. He gradually developed his career as a lecturer at Masterprep and has now been recognized as one of leading lecturers in Apgujeong, Seoul.
Harim is currently dedicating his time to produce mathematicalprep-books for junior high/highschool students tosimplify learning methods to effectively learn the core concepts and problem-solving strategies, writing on the bulky series called “Essential Math Series”, including this book.