advertise to build awareness and to generate response

Within the advertising purpose you should define whether you seek to create awareness or to generate a direct response. Effective marketing generally demands that each is employed, but on a limited budget you may be restricted to concentrating on one or the other, so think carefully about what will help most. Different media and methods are better suited to one or the other. Direct Mail is very good at generating a direct response, as are magazine and newspaper adverts, and inserts. Posters, TV, radio and press editorial are all much better at creating awareness and building credibility.

use language that your customers understand

In all of your advertising material take care to see things and hear things form your customers' viewpoint. As a knowledgeable supplier there is always a tendency to write copy and present information from a technical and 'product/service' standpoint. Remember that your customers are people without good technical or detailed understanding of your products and services. You need to help them understand things in terms that really mean something to the reader - as it relates to their needs and priorities and challenges. Focus on what your propositions do for them, not what your propositions are in technical detail. You should spell things out, using clear simple language. Do not fall into the trap of thinking that complicated language will help build an image of professionalism and intelligence - people will just turn off. The mark of truly effective advertising and marketing is the ability to convey complex issues to the audience in a manner that is interesting, relevant, meaningful, and easy to digest very quickly.

Thomas Jefferson suggested that "The most valuable of all talents is that of never using two words when one will do" and this is a good maxim for writing good advertising material.

If you or the 'copy-writer' at your advertising agency cannot achieve this in your advertising and marketing communications then find someone who can, or you will be wasting a lot of your advertising effort and investment.