| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| The Language of Human Character | Hardcover | 978-0-9839215-5-4 (0-9839215-5-5) | 2013 |
| The Language of Human Virtue | Paperback | 978-0-9839215-0-9 (0-9839215-0-4) | 2012 |
| The Language of Human Virtue | Hardcover | 978-0-9839215-1-6 (0-9839215-1-2) | 2012 |