Project Summary: Not everyone is going to be interested in your product, service, or idea. Rarely does a brand appeal to every potential customer. Most companies do not want to waste budgets on advertising to disinterested customers. To interest your target audiences, you must match the opportunities with their preferences. Various tools are used by marketers for successful advertising and publicizing their wares in the marketplace. The marketing formula of segmentation, targeting, positioning, and differentiation (STP / D) helps the marketer create a strategy that groups customers based on their likes or preferences and targets customers with specific advertising and public relations messages. Customer Segmentation and Interests Segmentation allows marketers to group or segment customers based on similar variables. To segment customer groups, the marketer finds commonalities in the demographic and psychographic information, along with likes and product preferences