is this unit about to study of marketing and how to use for high of benefit .study about the thing that make the organization damage the business and analysis the competitor in correct way and SWOT method the marketing study about what that time should to produce what thing and plan in market way that’s mean do the thing that most of people want include study the plan of competitor. For example, the good marketing is the GTH company they know what they do and they always produce some produce that modern and the people what to do . And their company does the movie that can interest almost of Thailand.