| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Four Corners: Robots! | 978-0-582-84109-3 (0-582-84109-7) | 2004 | |
| Four Corners: Year 3 Easy order Pack: Year Three Easy Order Pack | 978-0-582-85625-7 (0-582-85625-6) | 2004 | Sharon Stewart · Myka-Lynne Sokoloff · Joanne Sinclair · Barbara Gannett · Elizabeth Paren · Susan McCloskey · Robert Newell |
| Population Change | 978-0-7496-7600-1 (0-7496-7600-0) | 2007 | |