M G*** · M Gebhardt · Photography by Mark Gebhardt
| title | ISBN-13 | year of publication |
|---|---|---|
| Italy | 978-1-320-94575-2 | 2012 |
| Mediterranean Adventure May, 2010 | 978-1-320-94551-6 | 2013 |
| Prague & Budapest Photography by Mark Gebhardt October 2013 | 978-1-320-46441-3 | 2015 |
| Viking Cruise down the Danube November, 2013 | 978-1-320-94571-4 | 2015 |