Dr Ryuta Kawashima · Kawashima Ryuta · R.K. · R. Kawashima
| title | ISBN-13 | year of publication | |
|---|---|---|---|
| Gehirnjogging - Geistig topfit in 60 Tagen | 978-3-8289-5290-4 | 2008 | |
| Train Your Brain: 60 Days to a Better Brain | 978-1-933241-15-9 | 2005 | |
| Train Your Brain | 978-0-14-103488-1 | 2008 | |
| Train Your Brain | 978-1-84614-004-4 | 2007 | |
| Train Your Brain | 978-4-7743-0728-2 | 2003 |
Allen Lane · Kumon Publishing North America · Penguin · くもん出版 (kumonshuppan)