In Copy writing job what one must need to do?

I am very much interested to do copy writing job...but i dont know how to do.can any one of u tell me about this?

 

As a copywriter, your job will be to write sales copy for business to business and business to consumer marketing materials such as brochures, white papers, and other direct marketing campaigns. To put it in a nutshell, the content you write has to be written in such a way that it compels people to BUY, not just anywhere, but from your employer (or client).

 

Maybe this will help. It's an explanation of how freelance writing works:
http://www.writerseven.com/how-does-freelance-writing-work/