| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Chicago: Heart and Soul of America | 978-1-881096-53-5 (1-881096-53-X) | 1998 | Mark Norman · Kerry Robertson | |
| Tintenfisch-Führer: Kraken - Argonauten - Sepien - Kalmare - Nautiliden | 978-3-86132-506-2 (3-86132-506-3) | 2000 | ||