Since the comp is presented to a client, it is imperative that you make the product look as good as you can. You will need to work quickly, for the turnaround time is usually one day. It will take experience to work quickly and supply the agency with the quality they require. You should remember that comps are not supposed to be pieces of ﬁnished art, just giving general idea of how the ad should look. It is easy to add too much detail and to let the job end up taking too much of your time.