| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Robot Number tracing for Preschoolers and kids Ages 3-5: Lots of fun learning numbers 0-10 in robot theme worksheet ,book with games and coloring,kindergarten vol.3 | 978-1-0870-9620-9 (1-0870-9620-0) | 2019 |
| Robot Number tracing for Preschoolers and kids Ages 3-5: Lots of fun learning numbers 0-10 in robot theme worksheet ,book with games and coloring,kindergarten vol.4 | 978-1-0870-9640-7 (1-0870-9640-5) | 2019 |