Let us start by defining the term manuscript.
We consider a manuscript to be a written paper that an author submits to an editor or a publisher for publication purposes.
A scientific manuscript, however, is a scientific paper not yet in its final form.
It is yet to be peer reviewed, edited, and published.
In the context of library science, a manuscript is defined as any hand-written item in the collections of a library or an archive.
For example, a library's collection of hand-written letters or diaries is considered a manuscript collection.
A manuscript is the work that an author submits to a publisher, editor, or producer for publication.