Series
| Series Name | Release Date | Product Count |
|---|---|---|
| ¿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 |
| Regions of the United States | 2022-08-01 | 7 |
| Reptiles | 2015-08-01 | 5 |
| Reptile World | 2015-08-01 | 15 |
| Reptile World (Readallong Edition) | 2018-08-01 | 14 |
| Reptile World (Readalong Edition) | 2018-08-01 | 1 |
| Robot World | 2015-08-01 | 6 |
| Robot World (Readalong Edition) | 2018-08-01 | 5 |
| Safari Babies | 2019-01-01 | 8 |
| Safari Babies (Readalong Edition) | 2021-07-01 | 6 |
| Safe by Design | 2019-07-01 | 6 |
| Science Behind the Colors | 2020-08-01 | 7 |
| Science Questions | 2023-01-01 | 9 |
| Seasons | 2020-08-01 | 5 |
| See a Plant Grow! | 2022-08-01 | 10 |
| Se inteligente con tu dinero (Money Smarts) | 2018-01-01 | 7 |
| SEL Careers | 2023-08-01 | 6 |
| Senses in My World | 2014-08-01 | 7 |
| Serein au quotidien (Mindful Me) | 2020-08-01 | 6 |
| Shape Hunters | 2015-08-01 | 6 |
| Shape Hunters (Readalong Edition) | 2018-08-01 | 3 |