Series
| Series Name | Release Date | Product Count |
|---|---|---|
| Disaster Zone | 2015-08-01 | 17 |
| Disastrous Deaths | 2021-08-01 | 5 |
| Discover the Continents | 2016-01-01 | 9 |
| Discover the Oceans | 2016-01-01 | 7 |
| Diversión con colores (Fun with Colors) | 2019-07-01 | 11 |
| Dog Breeds | 2011-01-01 | 26 |
| Dog Groups | 2021-01-01 | 8 |
| Dog Heroes | 2015-08-01 | 38 |
| Dogs on Duty | 2022-01-01 | 1 |
| Dogs to the Rescue! | 2013-08-01 | 11 |
| Doomed History (set 2) | 2023-01-01 | 6 |
| Double Dog Combos | 2016-12-21 | 9 |
| Down & Dirty: The Secrets of Soil | 2015-07-01 | 7 |
| Do You Believe? | 2024-08-01 | 7 |
| Drip, Drip, Drop: Earth's Water | 2016-01-01 | 8 |
| Drive Thru | 2020-08-01 | 7 |
| Drive Thru Set Two | 2021-08-01 | 7 |
| Early Coding Concepts | 2023-01-01 | 4 |
| Early Physics Fun | 2016-01-01 | 7 |
| Earth Basics | 2023-08-01 | 4 |
| Earthforms | 2025-01-01 | 13 |
| Earth in Danger | 2008-08-01 | 4 |
| Earth Science-Landforms: Need to Know | 2024-08-01 | 7 |
| Earth Science Rocks! | 2014-08-01 | 6 |