Process of selecting and preparing media to convey information
Editing is the process of selecting and preparing written, visual, audible, or cinematic material used by a person or an entity to convey a message or information. The editing process can involve correction, condensation, organization, and many other modifications performed with an intention of producing a correct, consistent, accurate and complete piece of work. The editing process often begins with the author's idea for the work itself, continuing as a collaboration between the author and the editor as the work is created.
https://en.wikipedia.org/wiki/Editing