Professional Name vs. Real Name on Resume

Veso writes:
If I use a professional name instead of my real name which name should I include on my resume and cover letter?

The Career Doctor responds:
If you are known in your industry by your professional name then you should use it on your resume and cover letter. There’s no sense trying to explain it or confusing the potential employer with multiple names.
Obviously when the time is right — certainly when you are completing hiring papers you will need to use your real name.