Based on subject matter:
* Biography/Autobiography: Telling the life story of a person, either by someone else or the person themselves.
* History: Examining past events, societies, and people.
* Science: Exploring the natural world and scientific discoveries.
* Technology: Focusing on how things work, inventions, and technological advancements.
* Art & Literature: Analyzing and discussing various forms of art, literature, and cultural expressions.
* Philosophy: Investigating fundamental questions about existence, knowledge, and values.
* Psychology: Exploring the human mind, behavior, and mental processes.
* Politics: Examining government, political systems, and current events.
* Economics: Studying financial systems, production, and wealth distribution.
* Religion & Spirituality: Exploring religious beliefs, practices, and spiritual experiences.
* Travel: Accounts of journeys and experiences in different places.
* Health & Wellness: Offering information and guidance on physical and mental health.
* Self-Help: Providing practical advice and strategies for personal improvement.
Based on style/purpose:
* Narrative Non-Fiction: Telling a story using factual information but employing storytelling techniques.
* Expository: Providing factual information and explanations on a topic.
* Argumentative: Presenting a viewpoint and arguing for its validity.
* Descriptive: Creating vivid descriptions of people, places, or events.
* Reflective: Sharing personal experiences and insights on a topic.
* How-to: Providing instructions and guidance on a specific skill or task.
* Journalism: Reporting on current events and issues.
Other types:
* Memoir: A personal account of a specific period or event in the author's life.
* Essay: A short piece of writing that explores a specific topic or idea.
* Documentary: A film or video that presents factual information on a topic.
* True Crime: Non-fiction accounts of real crimes and criminal investigations.
It's important to remember that these are just broad categories, and there are many more specific subgenres within them. The world of non-fiction is incredibly diverse and constantly evolving.