| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Civilized Maze ~ Over to the ancient city of Atlantis ~ | 978-4-569-68574-8 (4-569-68574-9) | 2010 |
| Maze of Legends | 978-4-569-68769-8 (4-569-68769-5) | 2008 |
| Natural Heritage's Maze ~ Worldwide Trips From Oku Islands ~ | 978-4-569-68645-5 (4-569-68645-1) | 2006 |
G. K. · Günter Käs · Günter Kahowez · Günter Koch · Günter Kosch · Günter Kosche · Günther Kaack · Günther Koch · Günther Kosche · Günther Koß · Gunter Koch · Gunter Kuhs · Guntram Koch