HarperCollins · The History Press
| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Players: The Mysterious Identity of William Shakespeare | Paperback | 978-0-06-083417-3 | 2006 |
| Players: The Mysterious Identity of William Shakespeare | Hardcover | 978-0-06-077559-9 | 2005 |
| Royal Blood: King Richard III and the Mystery of the Princes | Paperback | 978-0-7509-4390-1 | 2006 |
| Royal Blood: King Richard III and the Mystery of the Princes | Hardcover | 978-0-7509-2612-6 | 2000 |
| Royal Blood: Richard III and the Mystery of the Princes | Paperback | 978-0-06-098738-1 | 2000 |
| Royal Blood: Richard III and the Mystery of the Princes | Hardcover | 978-0-06-039269-7 | 1998 |