| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Dog Days | 978-0-441-01553-5 | 2007 | |
| New Tricks | 978-0-441-01656-3 | 2008 | |
| Play Dead | 978-0-441-01964-9 | 2011 | |
| Spell of Words | 978-0-85208-036-8 | 1966 | Joan Levitt |
| Unleashed | 978-0-441-01798-0 | 2009 | |
J. L. · J. Levitt · John L. · John L. Levitt · John L. Levitt Ph.D.