To write successful advertisement content is to catch the attention of the customer at first sight as they flicker though the brochures and fliers like they flip through a magazine and not how they will read books with concentration.
1. Specific Matter
Firstly, only relevant and specific matter should be written in the ad. Some content writers fear missing out information and write as much as they can. This will only disinterest the customers more and space will be wasted. The writing style should be related to the type of flier or brochure that is to be written. Its usual for the reader to read skipping lines in between and there is a possibility that they will read it from bottom to top.
It always helps to use words that sell. But still, the content should be properly organized with the heading at the top, body in the middle and conclusion at the end. The main points can be written as sub-headings, in bold font. If the product is to be discussed from the technical point, it should not be so technical that it sounds like a foreign language to a common man.