Some typical sales letter topics include: Introducing yourself to a lead who's filled out a web form. Sales letters require certain elements that help convince a customer to invest in a product or service.1. Call Out to Your Audience. Have you ever tried (or been tasked with) writing a sales letter? The purpose of the document is to provide information on how to write sales letters that will elicit responses from potential customers. The 12-step sales letter template is designed to overcome each of these objections in a careful, methodical series of copywriting tactics. This document outlines the assignment to write a persuasive sales letter using the AIDA framework: Attention, Interest, Desire, Action. When I write sales letters, I try to be as clear, logical and persuasive as possible, and that starts with gathering the facts. SAMPLE. IMPORTANT: Your sales tax address MUST be your new LEON VALLEY business address-NOT accepting Sales Tax permits with a San Antonio address. We support America's small businesses.