A copy editor does more than merely correcting typos, grammar and punctuation, although this is an important part of the job. They work to improve a version of text that is almost completed, using the best English possible.
A good editor will enhance the quality of
the writing. They will work to improve the clarity, impact, flow,
meaning, readability or the argument of a piece so that it is
communicated to its target audience in the best possible way.
We tell our proofreading and editing course
students that editors often also work closely with writers. They may
consult them on drafts in order to ascertain meaning and check facts.
Check out this blog for different types of editors and their duties.
Check out this link for detailed information on the role of a copy editor.
See our proofreading and editing course