Here are samples and templates of sales introduction letters. These examples help make a professional impression and begin the sales cycle.A sales letter is an important tool for shaping the way customers think of you. Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. The Bureau offers sample registration forms for most types of filings. The Bureau also provides sales of new business lists, bulk data, and bulk images. Writing a sales letter can be a make or break time for your business. Have you ever tried (or been tasked with) writing a sales letter?