| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2000 | 978-0-9644846-0-3 | Howard Schrager · Bruce Bischof | L M N O P and All the Letters A to Z |
| 2010 | 978-0-9644846-3-4 | Howard Schrager | A Knife and a Fork and a Bottle and a Cork (Riddle Rhyme Trilogy) |
| 2014 | 978-0-9644846-4-1 | '' | Chicken in the Car and the Car Can't Go (Riddle Rhymes) (Volume 2) |