| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Ningen kono tanoshiki mono: Kaibara Ekiken "Rakukun" o yomu | 978-4-8379-1259-0 (4-8379-1259-1) | 1984 |
| Suteru omoikiru de jinsei ga raku ni naru: Kokoro no garakuta o shobun suru hon. | 978-4-86081-514-1 (4-86081-514-9) | 2014 |