| Books in this series: |
| 1 | Spy School | 2012 | 2 | Spy Camp | 2013 | 3 | Evil Spy School | 2015 | 4 | Spy Ski School | 2016 | 5 | Spy School Secret Service | 2017 | 6 | Spy School Goes South | 2018 | 7 | Spy School British Invasion | 2019 | 8 | Spy School Revolution | 2020 | 9 | Spy School at Sea | 2021 | 10 | Spy School Project X | 2022 | 11 | Spy School Goes North | 2023 | 12 | Spy School Goes Wild | 2024 |