Freelance

A freelancer is somebody who is self-employed and is not committed to a particular employer long term.

Fields where freelancing is common includes journalism, book publishing, writing, editing, copy editing, proofreading, indexing, copywriting, computer programming, web design and graphic design.

(Copy editing - is the work that an editor does to improve the formatting, style and accuracy of text. Unlike general editing, copy editing often does not involve changing the substance of the text)