Cutting Edge Technology (6 titles)
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Shark Frenzy (12 titles)
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Pirate Tales (6 titles)
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Animals in My Yard (18 titles)
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The Seven Wonders of the Modern World (7 titles)
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The World's Smartest Animals (6 titles)
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Saddle Up! (10 titles)
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Mythical Creatures (12 titles)
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Superhero Science (10 titles)
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Our Favorite Foods (10 titles)
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Animal Battles (40 titles)
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A Pet What?! (6 titles)
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Your Body Systems (6 titles)
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Natural Disasters (12 titles)
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Digging Up the Past (6 titles)
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Cool Careers (6 titles)
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It's the End of the World! (8 titles)
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The World of Dinosaurs (22 titles)
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Inventions that Changed the World (10 titles)
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Country Profiles (78 titles)
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Space Science (16 titles)
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North American Animals (58 titles)
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Car Crazy (22 titles)
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Birds of Prey (6 titles)
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