The Importance of Proper Editing

You've written a book, gone through it a dozen times on your own, revising, editing, spell-checking, making additions, deletions, and modifications. Now what? Now it goes to a professional editor.


Why? I've been through it myself a dozen times already?! I ran spell-check AND grammar-check! Why should I pay someone else to look through it before I send it out to agents or self-publish it?
Simply put, Professional Editors do it for a living. You probably don't. Let's look at a few more specific reasons. ...