Creative writing is considered to be any writing, fiction, poetry, or non-fiction, that goes outside the bounds of normal professional, journalistic, academic, and technical forms of literature. Works which fall into this category include novels, epics, short stories, and poems. wikipedia.org

A short story is a work of fiction that is usually written in prose, often in narrative format. This format tends to be more pointed than longer works of fiction, such as novellas (in the 20th and 21st century sense) and novels.

Fiction writing is the composition of not factual texts. Fictional writing often is produced as a story meant to entertain or convey an author's point of view.

A synopsis is a brief summary of the major points of a written work, either as prose or as a table; an abridgment or condensation of a work. wikipedia.org

A ghostwriter is a professional writer who is paid to write books, articles, stories, reports, or other texts that are officially credited to another person. wikipedia.org

Screenwriting is the art and craft of writing scripts for mass media such as feature films, television productions or video games. It is frequently a freelance profession. wikipedia.org

Developmental editing is a form of writing support that comes into play before or during the production of a publishable manuscript, especially in the area of non-fiction writing. wikipedia.org