| title | media type | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|---|
| Machiavelli: A Biography | Paperback | 978-1-4165-5630-5 | 2012 | ||
| Machiavelli: A Biography | Hardcover | 978-1-4165-5628-2 | 2011 | ||
| Magnifico: The Brilliant Life and Violent Times of Lorenzo De' Medici | " | 978-1-906217-71-6 | 2008 | ||
| Standorte / Die Befruchtung des Konstruktiven Geistes: BD 1 | Gebunden | 978-3-9803101-1-6 | 1993 | Peter Martens · Gerd Biegel · Beatrix Nobis | |
| The Watercolors of Winslow Homer | Hardcover | 978-0-393-02047-2 | 2001 | Winslow Homer | |
JR Books Ltd · Martens, P · Simon & Schuster · W. W. Norton & Company