You need to impress a native English speaker, e.g. for a job application.
You need to communicate with an international scientific audience.
You might notice that the nice text that you've written seems to confuse people, or the readers just don't seem to get the point.
What are my qualifications to edit texts?
You can examine my publications list here. I wrote 90% of those papers myself. You may request copies of those papers from me by e-mail.
How does it work between a client and me?
You contact me by either e-mail or telephone for us to arrange an initial, free-of-charge meeting.
In that meeting, we discuss how much language polishing is needed and how intensive the editing should be.
I provide you with an estimate of the time needed to complete the job (my rate is $ 50/hour).
We can either work on the manuscript together at a suitable location, or I will provide you with the corrected version within an agreed-upon timeframe.