There are certain types of writing that is very lucrative for the writer and copywriting is one of those gigs.
The reason is because you must know how to be persuasive with your words and prompt readers into action.
Sales copy pages need to convert and many times webmasters will pay top dollar for writers who are good with the pen.
It will take practice because the style of writing is different from fiction or even non-fiction articles.
You will need to know some of the features and benefits of the product or subject being sold to get the target audience to take action immediately without hesitation.