If you're unsure about the quality of your English, getting your work proofread is an essential part of the writing process. But work like this is often returned littered with proofreading marks which are hard to understand. In that situation, although you can rely on the proofread document being correct, it's hard to tell just where you went wrong, or why.
A good editor won't let proofreading marks remain a mystery. When you are able to discuss and understand proofreading marks, you'll find it much easier to understand how and why changes have been made to your original work. It's one thing to be aware that you've made mistakes but quite another to understand how to stop making them. Proper attention to proofreading marks can make all the difference.
Proofreading marks are not just there for the convenience of the proofreader themselves. They're part of the process of developing and improving your work on an ongoing basis. A cynic might say that editors tend to be deliberately obscure about proofreading marks because they want to keep their clients coming back for more, rather than letting them learn how to be more self sufficient, but this is certainly not true of everybody in the procession. EditFast has plenty of skilled professional who will be happy to talk over proofreading marks with you. They'll explain why they use different types of proofreading marks so that you can understand them properly.
A shared understanding of proofreading marks can improve the relationship between writer and editor. Every good editor wants to see clients become more confident about their writing. So don't let proofreading marks be a barrier - make sure your work is handled by somebody who will treat you with the respect your deserve.
For a complete list of common prooreading marks see this page: Proofreaders Marks