No doubt, the headline is the most important part of any advertisement or sales letter. The reason is very simple. The headline is the first thing your prospect sees when he or she looks at your advertisement.It’s an advertisement for your advertisement.The only purpose of your headline is to get your prospect to continue reading your ad or sales letter. It must get your reader’s attention and it must pull them into your ad.Your headline must be so irresistible that your reader has to find ou.