Direct Marketing is a type of marketing strategy that businesses use to interact directly with their customers. This can be done by speaking face-to-face, over the phone, or through the mail, but the end goal is ultimately to sell as much as you can as fast as you can. Direct marketers will even attempt to call up their customers in the middle of the night if they think that is when a customer is most likely to buy. 

Direct Mail Marketing, also known as promotional mailers, are postcards or other direct mailers that an individual sends to a wide audience to promote a business. While this type of marketing is inexpensive and effective in producing more sales for a business, it is also a cost-ineffective solution because there is no way to tell how many individuals will respond.