| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1993 | 978-0-9635474-1-5 | Karlen Evins | "I Didn't Know That" Vol. 2 |
| 2007 | 978-0-9635474-2-2 | Karlen R. Evins | I Didn't Know That (Unabridged Audio): From "Ants in the Pants" to "Wet Behind the Ears" the Unusual Origins of the Things We Say by Karlen Evins (Rea |