This is writing that communicates specific information about a particular subject craft or occupation.?

That's a great description! That kind of writing is often called informative writing, expository writing, or non-fiction writing.

Here are some other terms that describe this type of writing:

* Technical writing: This focuses on a specific technical subject, often with a very precise and detailed style. Examples include user manuals, technical reports, and scientific papers.

* Instructional writing: This aims to teach a specific skill or process. Examples include cookbooks, how-to guides, and tutorials.

* Journalistic writing: This focuses on reporting news and current events. Examples include news articles, feature articles, and investigative reports.

* Academic writing: This is writing intended for a scholarly audience, often focusing on research and analysis. Examples include essays, research papers, and dissertations.

No matter the specific term, the core purpose of this type of writing is to communicate clear and accurate information about a particular subject.