Great Animal Comebacks (8 titles)
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Greatest Moments in Sports (6 titles)
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Green Planet (3 titles⁎)
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Haunted History Complete Set (11 titles)
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Haunted History Set One (5 titles)
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Haunted History Set Two (6 titles)
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Heroic Dogs (8 titles)
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History of Pets Set (6 titles)
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History of Sports (6 titles)
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Holiday History (13 titles)
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HorrorScapes (1 title⁎)
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Horse Breed Roundup (11 titles⁎)
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Hound Town Chronicles (8 titles)
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How Does It Work? (11 titles)
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How Does it Work?: Farm Tech Set (4 titles)
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How Is It Made? (6 titles)
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How to Build Our World Complete Set (8 titles)
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Ice Age Animals (10 titles)
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Incredible Animal Life Cycles (5 titles⁎)
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Incredible Sports Records (6 titles)
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In Search of the Unexplained Series (10 titles)
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Invasive Species (14 titles)
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Inventions that Changed the World (10 titles)
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Investigating the Unexplained (10 titles)
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