Essay writing refers to the collection of articles from the society by organizations or individuals, and the requirements of the articles are drawn up by the collectors. For example, Xinhua News Agency collects articles about childhood from young friends, which is called essay writing. Argumentative writing is a style or genre. Narrative, expository, argumentative, etc. This is a genre, argumentative writing is a genre, and it is a noun; And essay writing is a phrase, which means asking for (verbs) articles (nouns). Do you understand now?