Answer:
"Direct marketing is a form of advertising that reaches its audience without using traditional formal channels of advertising, such as TV, newspapers or radio. Businesses communicate straight to the consumer with advertising techniques such as fliers, catalog distribution, promotional letters, and street advertising."
"Direct selling is marketing and selling products, direct to consumers away from a fixed retail location. Sales are typically made through party plan, one to one demonstrations, and other personal contact arrangements. A text book definition is: "The direct personal presentation, demonstration, and sale of products and services to consumers, usually in their homes or at their jobs."