| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Art, Humor, and Humanity of Mark Twain | 978-0-8061-4331-6 (0-8061-4331-2) | 2012 | Robert M. Rodney · Edward Wagenknecht |
| The Birds and Beasts of Mark Twain | 978-0-8061-1120-9 (0-8061-1120-8) | 2012 | Robert M. Rodney · Robert Roche |