| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| G is for Galaxy: An Out of This World Alphabet | Paperback | 978-1-58536-335-3 (1-58536-335-9) | 2006 | Janis Campbell |
| G is for Galaxy: An Out of This World Alphabet | Hardcover | 978-1-58536-255-4 (1-58536-255-7) | 2005 | Janis Campbell ยท Alan Stacy |
| I is for Idea: An Inventions Alphabet | Paperback | 978-1-58536-327-8 (1-58536-327-8) | 2005 | Janis Campbell |