Mack’s interview appears in the official website of TOEIC.
It intends to give advice for TOEIC Speaking and Writing Test takers on
how to communicate in English and prepare for the TOEIC SW Test.
TOEIC official website (in Japanese)
Mack’s Interview Page at the TOEIC official website (in Japanese)
Related articiples
Mack’s English Method was also introduced in an NIKKEI BUSINESS article by Ms. Eriko Kawai, Professor of Kyoto University