Polar Babies (6 titles)
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Power Up with Energy! (6 titles)
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¡Practiquemos deportes! (Let's Play Sports!) (8 titles)
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¡Qué desastre! (It's a Disaster!) (1 title⁎)
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¿Qué pasa con eso? (Where Does It Go?) (4 titles)
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¿Qué pasa en el invierno? (What Happens in Winter?)
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¿Qué pasa en la primavera? (What Happens in Spring?)
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Rain Forest Babies (8 titles)
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Raptor World (6 titles)
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Read and Rhyme Level 1 Set One (8 titles)
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Read and Rhyme Level 1 Set Two (4 titles)
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Read and Rhyme Level 2 Set One (8 titles)
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Read and Rhyme Level 2 Set Two (4 titles)
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Read and Rhyme Level 3 (8 titles)
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Ready, Set, Grow: Plants (6 titles⁎)
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New! Spring 2025 |
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Record-Breaking Animals (6 titles)
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New! Fall 2024 |
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Regions of the United States (4 titles)
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New! Spring 2025 |
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Reptile World (17 titles)
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Responsible Citizenship (6 titles)
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Rockin' Earth! (6 titles)
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New! Fall 2024 |
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Rock-ology: The Hard Facts About Rocks
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Saddle Up! (10 titles)
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Safari Babies (6 titles)
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Save the Animals! (6 titles)
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