Superhero Science (10 titles)
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Survival Zone (12 titles)
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Symbols of American Freedom (12 titles)
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Take Flight! (6 titles)
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Tech Icons (8 titles)
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The Five Senses (5 titles)
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The Scariest Places on Earth (12 titles)
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The Seasons (4 titles)
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The Seven Wonders of the Modern World (7 titles)
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The Ultimate Animal Library (22 titles)
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New! Fall 2024 |
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The Unexplained (12 titles⁎)
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The World of Dinosaurs (22 titles)
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The World's Fastest (4 titles⁎)
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The World's Smartest Animals (6 titles)
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Too Cute! (32 titles)
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Top Secret Spy Stories (6 titles)
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New! Fall 2024 |
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Totally Disgusting (6 titles)
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Tough Trucks (6 titles)
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True Survival Stories (6 titles)
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Understanding Weather (6 titles)
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Unexplained Mysteries (13 titles)
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U.S. Military (12 titles⁎)
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U.S. National Parks (12 titles)
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War Histories (10 titles)
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