| Race and Sports (6 titles) |
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| Race in America (6 titles) |
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| Robot Innovations (6 titles) |
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| Sheroes (4 titles) |
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| Símbolos de los Estados Unidos (US Symbols) (6 titles) |
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| Slavery in America (4 titles) |
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| Space Crusaders (6 titles) |
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| Space Technology (6 titles) |
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| Special Reports Set 3 (8 titles) |
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| Special Reports Set 4 (8 titles) |
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| Special Reports Set 5 (2 titles) |
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| Special Reports Set 6 (8 titles) |
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| Spooky Spots (6 titles) |
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| Sports Dynasties (8 titles) |
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| Sports Encyclopedias (4 titles) |
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| Sports GOATs: The Greatest of All Time (8 titles) |
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| STEM Stories (6 titles) |
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| Super Soccer (6 titles) |
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| Tech Titans (8 titles) |
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| The 9/11 Terrorist Attacks (6 titles) |
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