Marketing is a very diverse industry related to any activity linked to buying or selling a product or service. Marketing professionals can work for large or small businesses as in house marketing specialists or work for one of the hundreds of advertising businesses national. The goal is to get the attention of a target audience through the use of slogans, packaging design that promotes a brand image, superstar endorsements, social apps with engaging videos or images, and average media publicity. Even the small task of writing a thank you letter or playing golf with a potential client falls under the class of marketing.