| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Humphrey Hatt Letters and their replies: Humphrey's correspondence with the famous including Tony Abbot, Nelson Mandela, Bill Clinton, Ken Done, Bryce Courtney, Andrew Denton and many more... | 978-O-646-35718-8 (O-646-35718-2) | 2010 |