| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mastering Japanese Kanji: The Innovative Visual Method for Learning Japanese Characters | 978-4-8053-0992-6 (4-8053-0992-X) | 2009 |
| Tuttle Learning Japanese Kanji: The Innovative Method for Learning the 500 Most Essential Japanese Kanji Characters | 978-4-8053-1168-4 (4-8053-1168-1) | 2013 |