A marketing specialist is a person who helps a company manage promotions, design advertisements, and build strategies for attracting and retaining customers. In most cases, saying that someone is a “marketing specialist” means that he or she has formal training and expertise in business or brand advertisement, but doesn't specify what this person does on a day-to-day basis. Some are marketing managers or executives who direct teams and create campaigns, while others are more junior-level analysts who watch buying trends or study consumer purchasing power. There are many different jobs that these specialists can do, and a lot depends on setting, training, and individual interest.