- Academic Book Publishers
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- Game and Hobby Publishers
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- Inspirational Publishers
- Law Book Publishers
- LGBTQ Book Publishers
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- Non-English/Translations
- Open Access Publishers NEW
- Outdoors/Natural History
- Paranormal Book Publishers
- Parenting Book Publishers
- Performing Arts Books
- Photography Publishers
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- Pop Culture/Trivia Book Publishers
- Psychology Publishers
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- Reference Publishers
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- Romance Book Publishers
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- Science Fiction/Fantasy
- Self-Help Book Publishers
- Sports Book Publishers
- Textbook Book Publishers
- Thriller Book Publishers
- Travel Book Publishers
- University Publishers
- Western/Cowboy Book Publishers
- Women's Fiction Publishers NEW
- Writing Book Publishers
- Young Adult Publishers