| High Technology (6 titles) |
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| Historical Ages (6 titles) |
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| Historical Biographies (6 titles) |
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| Historical Disasters (6 titles) |
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| History of Games (6 titles) |
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| History of Holidays and Festivals (8 titles) |
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| History of Sports (6 titles) |
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| History of the Titanic (6 titles) |
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| History's Greatest Disasters (4 titles) |
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| History's Greatest Mysteries (6 titles) |
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| Holiday Jokes & Sweet Treats (6 titles) |
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| Holidays (8 titles) |
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| Hollywood Monsters Set 1 (6 titles) |
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| Hollywood Monsters Set 2 (6 titles) |
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| Hometown Hunters (6 titles) |
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| Horror Stories (6 titles) |
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| Horse Breeds (8 titles) |
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| Houndsley and Catina (6 titles) |
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| How Animals Evolved (6 titles) |
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| How Foods Grow (8 titles) |
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