“A good editor will not just point out errors; she explains them, providing you with an education to enable you to perform a stronger rewrite. For instance, if your manuscript includes point-of-view violations—a major reason for fiction rejection—she will offer a thorough explanation of the concept and provide easy-to-understand examples. A good editor will encourage you and compliment you on your strengths, but she will not hold back in showing you where you need improvement or are making repeated mistakes. She does not expect you to know all the book publishing rules for copyediting—that’s her job. But she does try to help you understand some basic underlying principles that you might need to learn in order to be a better writer. A good editor knows your book is your “baby” and that you have poured many hours into writing it, but her goal is to help you make that book the best it can be, and sometimes that requires you, the author, to make drastic changes. In other words, a good editor is “on your side” and wants to help, but she is mostly concerned with getting your book in the best shape possible.”
— C. S. Lakin / critiquemymanuscript.com