English Editing.

As a non native speaker you may find that English has an extensive amount of perplex rules that you may be unaware of.
On the surface, your writing might seem flawless upon your own observation.
However, there may be errors that a native English speaker would be able to address.
Another matter that can determine your writing fluency is word usage.
The advantage of having a native proofreader correcting your work doesn’t just end with ensuring your writing is free from spelling, punctuation and grammatical errors, but also assisting in improving readability and word usage, making your writing as clear and concise as need be.