The answer can be either yes or no. Do not say it depends. Either you can write an effective copy or you simply cannot. There is no mid-way, but there are times when you end up accidently producing effective copy, but those accidental geniuses cannot make you a good advertisement copywriter. To be a good advertisement copy writer, you need to write good copies every time you pick a product, at least most of the time. There are certain principles that you need to follow, if you wish to write real good copy, not just those “accidental geniuses”.