Junk mail (or direct mail) is the fastest growing form of marketing in the country. It is the leading medium among national advertisers, accounting for more than 30% of advertising expenditures. You can use junk mail to sell products or generate leads for sales. Direct mail has several advantages to traditional methods of identifying prospective clients: it generates immediate, tangible response; the response can be measured, as can the sales and profits generated by it; it's selective--you can zero in on any market segment you want, without waste; it is personal; direct mail can fit any budget and pay for itself quickly. Be careful in producing your mailing material: use a professional to create your package instead of designing it yourself. Take advantage of the experience afforded by the research and refining that has already been done by professionals.