| title | ISBN-13 | year of publication |
|---|---|---|
| Comic Book Kid: Notebook for Young Comics Fanatic and Future Superhero | 978-1-0705-6915-4 | 2019 |
| Completely Irrational: Pi Symbol Notebook for Math Geeks | 978-1-0737-6686-4 | 2019 |
| Octopi: Notebook Featuring Fun Octopus Pi Math Pun | 978-1-0993-7594-1 | 2019 |
| Octopi: Octopus Mathematical Constant Notebook | 978-1-0725-2727-5 | 2019 |