| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2007 | 978-0-9792918-0-7 | Beth Finke | Hanni and Beth: Safe & Sound |
| '' | 978-0-9792918-1-4 | Beth Finke | Hanni and Beth: Safe & Sound |
| 2009 | 978-0-9792918-3-8 | Sheila Sustrin · Letty Sustrin | The Teacher Who Would Not Retire Discovers a New Planet |