Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Cat Club | 2020-08-01 | 8 |
| Cat-ographies | 2011-01-01 | 7 |
| Cazadores de formas (Shape Hunters) | 2015-08-01 | 5 |
| Celebrando las diferencias (Celebrating Differences) | 2017-08-01 | 7 |
| Celebrando nuestras comunidades (Celebrating Our Communities) | 2020-08-01 | 7 |
| Celebrating All Friends | 2023-08-01 | 8 |
| Celebrating Differences | 2017-08-01 | 7 |
| Celebrating Holidays | 2018-08-01 | 26 |
| Celebrating Our Communities | 2020-08-01 | 7 |
| Character Education | 2019-01-01 | 12 |
| Children's Storytellers | 2017-08-01 | 22 |
| Ciclos de vida (Life Cycles) | 2022-08-01 | 9 |
| Circus of Fears | 2024-01-01 | 5 |
| Cities Through Time | 2023-08-01 | 21 |
| Citified! | 2017-07-19 | 9 |
| Clasificación animal (Animal Classification) | 2017-01-01 | 8 |
| Climate Change: Need to Know | 2024-01-01 | 7 |
| Code Red | 2010-08-01 | 15 |
| Coding is Everywhere | 2018-08-01 | 8 |
| Cold Whispers | 2015-07-01 | 9 |
| Cold Whispers II | 2016-08-01 | 10 |
| Colorful Minds: Tips for Managing Your Emotions | 2021-08-01 | 12 |
| Colors in Nature | 2013-08-01 | 8 |
| Colors Tell a Story | 2014-08-01 | 8 |