"English High-Speed Method: Review English Conversation Collection - Become a Native Speaker's Brain & Ears in 1 Week with Junior High School English! Improve Quickly with Double-Speed Listening!" Yoshikazu Kasahara Price: ¥1,944 #YoshikazuKasahara #Books #BOOK #ReferenceBooks Purchased at a bookstore. I haven't read the book itself, but I have opened two of the three CDs included.