Series
| Series Name | Release Date | Product Count |
|---|---|---|
| ¿Qué pasa con eso? (Where Does It Go?) | 2020-08-01 | 5 |
| ¿Qué pasa en el invierno? (What Happens in Winter?) | 2016-08-01 | 6 |
| ¿Qué pasa en la primavera? (What Happens in Spring?) | 2015-08-01 | 6 |
| Rain Forest Babies | 2020-08-01 | 9 |
| Raptor World | 2019-07-01 | 7 |
| Read and Rhyme Level 1 | 2019-07-22 | 9 |
| Read and Rhyme Level 1 (set 2) | 2023-08-01 | 4 |
| Read and Rhyme Level 1 Set One | 2019-08-01 | 1 |
| Read and Rhyme Level 2 | 2019-07-22 | 9 |
| Read and Rhyme Level 2 (set 2) | 2023-08-01 | 4 |
| Read and Rhyme Level 2 Set One | 2019-08-01 | 1 |
| Read and Rhyme Level 3 | 2019-07-22 | 10 |
| Ready, Set, Game! | 2021-01-01 | 8 |
| Ready, Set, Grow: Plants | 2025-01-01 | 13 |
| Record-Breaking Animals | 2024-08-01 | 7 |
| Regions of the United States | 2025-01-01 | 6 |
| Regions of the United States | 2022-08-01 | 7 |
| Reptiles | 2015-08-01 | 5 |
| Reptile World | 2015-08-01 | 15 |
| Rescued! Animal Escapes | 2021-01-01 | 7 |
| Rescuing Animals from Disasters | 2011-08-01 | 8 |
| Responsible Citizenship | 2021-08-01 | 8 |
| River Adventures | 2024-08-01 | 7 |
| River Monsters | 2024-01-01 | 7 |