- Japanese for Busy People I: Kana Version, Revised 4th Edition
- Japanese for Busy People Book 1: Romanized: Revised 4th Edition (free audio download)
- ヤングのための日本語 I - Japanese for Young People I: Student book
- Japanese for Busy People Kana Workbook: Revised 4th Edition (free audio download)
- Japanese for Busy People I: The Workbook for the Revised 4th Edition