writing methods; rules of good writing; writing style guide
Refers to the techniques, conventions, and principles for composing clear and effective written Japanese. Often used in educational contexts or as a book title.
I'm reading books by famous authors to learn writing techniques.
This writing style guide is helpful for writing reports.
Compound of 文章 (writing, composition) and 作法 (manners, rules, etiquette). The term likely emerged in the modern era with the rise of systematic writing instruction.