Comma splices and run-on sentences are very common errors in prose. There are a lot of ways to explain them using terms like "coordinating conjunction" or "subordinating conjunction," but in this article we'll skip the jargon.
A comma splice is a common mechanical English mistake ...
If an edit is any kind of revision done to your manuscript, a professional edit is one done by a professional with experience in one or more types of editing. With any luck, this little beginner's guide will give you some insight into what you're looking for, and what expectation...