Catch the reader's eye: it is very crucial in a sales letter to attract the reader's attention or else you will probably fail to sell your product or service Catch the reader's eye: it is very crucial in a sales letter to attract the reader's attention or else you will probably fail to sell your product or service Describe the product or service you are trying to sell Convince your reader that your claims are accurate: back up your comments with research and facts Give the reader opportunities to learn more about your product or service: provide the reader with a phone number, a Web site address, or some way for them to seek out information on their own