Chung’s Study Method (英語は絶対、勉強するな!)
Judging from bookstore displays and train ads, Chung Changyong’s Eigo wa zettai, benkyou suru na! was very popular with the Japanese public. Chung’s book, translated from the Korean, details his language learning method, which the author of this article says can be applied to JSL learners.
Source: “Toyo Gakuen University / R. Welch” | Subject: Language Learning Tips