| 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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| Holidays Set 1 (6 titles) |
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| Holidays Set 2 (6 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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| Horse Breeds (8 titles) |
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| Horses Set 1 (6 titles) |
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| Horses Set 2 (6 titles) |
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| How Animals Evolved (6 titles) |
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| How Foods Grow (8 titles) |
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| How Is It Made? Set 1 (6 titles) |
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| How Is It Made? Set 2 (6 titles) |
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| How the US Government Works (5 titles) |
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| How to Survive (6 titles) |
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| Hunting (6 titles) |
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| Hype Brands (6 titles) |
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| Ice Age Animals (6 titles) |
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