This document discusses various modes of direct marketing, including direct mail advertising, direct response advertising, telemarketing, cataloging, and the internet. Direct mail advertising involves sending promotional materials directly to prospects via mail. Direct response advertising aims to generate an immediate response through mail, phone, or in-person. Telemarketing can be outbound calls made by marketers or inbound calls to a marketer's number. Catalogs provide a wide selection but have high costs. The internet allows infinite selection and access 24/7 but fulfillment may be delayed.