Informative/Expository:
* Science: Biology, Chemistry, Physics, Astronomy, Geology, etc.
* History: Biographies, Autobiographies, Histories of specific events or eras, etc.
* Social Sciences: Psychology, Sociology, Anthropology, Economics, Political Science, etc.
* Technology: Computer science, engineering, medicine, etc.
* Business: Management, Finance, Marketing, Entrepreneurship, etc.
* Travel: Travelogues, guidebooks, memoirs of travel, etc.
* Self-Help: Personal development, relationships, finances, etc.
* How-To: Cookbooks, DIY guides, craft books, etc.
Narrative Non-fiction:
* Memoir: Personal stories about the author's life.
* Biography: Detailed account of someone else's life.
* Autobiography: Written by the subject about their own life.
* Travel Writing: Accounts of travel experiences.
* True Crime: Non-fiction accounts of crimes.
* Sports: Sports journalism, memoirs of athletes, etc.
Other Categories:
* Journalism: News reporting, investigative journalism, opinion pieces.
* Essay: Short, focused pieces exploring a specific topic.
* Literary Non-fiction: Blends literary techniques with non-fiction content.
* Philosophy: Exploration of fundamental questions about existence, knowledge, and values.
* Religion: Theology, religious history, spiritual writings.
* Art & Culture: Art criticism, literary criticism, music reviews, etc.
Important Note: These categories are not exhaustive. Within each category, there are countless subgenres and variations. For example, within "science," you might find books on genetics, astrophysics, or the history of science.
The categorization of non-fiction can be fluid and depends on the specific content and approach of the work.