Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Cool Cats | 2017-08-01 | 27 |
| Cool Rides | 2009-08-01 | 23 |
| Cosmos Questions | 2025-08-01 | 0 |
| Countries of the World | 2022-08-01 | 53 |
| Countries We Come From | 2015-07-01 | 75 |
| Country Explorers (set 2) | 2023-01-01 | 10 |
| Country Explorers (set 3) Series | 2023-08-01 | 10 |
| Country Explorers Set Two | 2023-01-01 | 1 |
| Country Profiles | 2019-01-01 | 79 |
| Count with Me | 2024-08-01 | 5 |
| Crafting with Nature | 2020-01-01 | 7 |
| Crafting with Style! | 2025-01-01 | 7 |
| Crafts in a Snap! | 2023-01-01 | 7 |
| Creepy Crafts & More | 2020-08-01 | 7 |
| Creepy Crawlies | 2015-08-01 | 13 |
| Cutting Edge Technology | 2020-08-01 | 7 |
| Danger Below! | 2020-08-01 | 8 |
| Danger Down Under | 2024-01-01 | 7 |
| Dangerous Jobs | 2015-01-01 | 21 |
| Dangerous Journeys | 2022-08-01 | 8 |
| Deadly Disasters | 2021-08-01 | 7 |
| Deconstructed Diets | 2021-01-01 | 7 |
| ¿De dónde viene? (Where Does It Come From?) | 2020-07-01 | 14 |
| Defining Moments | 2005-08-01 | 6 |